WO2020000751A1

WO2020000751A1 - Automatic composition method and apparatus, and computer device and storage medium

Info

Publication number: WO2020000751A1
Application number: PCT/CN2018/108851
Authority: WO
Inventors: 梅亚琦; 刘奡智; 王健宗; 肖京
Original assignee: 平安科技（深圳）有限公司
Priority date: 2018-06-29
Filing date: 2018-09-29
Publication date: 2020-01-02
Also published as: CN109036355B; CN109036355A

Abstract

The present invention relates to an automatic composition method and apparatus, and a computer device and a storage medium. The method comprises: performing chord breaking and chord inversion on three or more starting notes; randomly generating four arpeggio sequences; orchestrating the four arpeggio sequences with musical elements to obtain a prelude, an interlude, a postlude and a coda; randomly transferring one piece of melody corresponding to the type of song to obtain a main melody; and selecting a target from the prelude, the interlude, the postlude and the coda, and splicing the target and the main melody in sequence to generate the song.

Description

Automatic composition method, device, computer equipment and storage medium

This application claims priority from a Chinese patent application filed with the Chinese Patent Office on June 29, 2018, with application number 2018107153769, and entitled "Automatic Composition Method, Device, Computer Equipment, and Storage Medium", the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of computer technology, and in particular, to an automatic composition method, device, computer equipment, and storage medium.

Background technique

Algorithmic composition has a history of decades, but no iconic results have appeared so far.

Many music composition systems have emerged in the past few decades, including many techniques such as hidden Markov models, generative grammar, transformation networks, chaos and self-similarity (fractal), genetic algorithms, cellular automata, neural networks And artificial intelligence methods and much more. Existing automatic arranger software requires users to have a certain knowledge of music theory before it can be used smoothly. For the mass users who do not have a musical theory foundation, they cannot use the automatic arranger software to create, and the audience is small.

technical problem

In view of the shortcomings of the prior art, the present invention proposes an automatic composition method, device, computer equipment, and storage medium. The song is generated according to a preset composition rule based on a start sound and a song type input by a user, and aims to solve the existing automatic compilation. Music software requires the user to have a certain knowledge of music theory before it can be used smoothly.

Technical solutions

The technical solution proposed by the present invention is:

An automatic composition method, the method includes:

Get more than three start sounds input by the user;

Performing chord decomposition on the three or more start notes input by the user and performing chord inversion after the chord decomposition according to the harmony theory;

After the chords are transposed, four arpeggio sequences corresponding to the chords are randomly generated;

Obtaining a song type selected by the user;

Arrange corresponding music elements to the four arpeggio sequences according to the preset composition rule and the song type to obtain intro, intro, end and end

Randomly select a melody corresponding to the song type from the music library to obtain the main melody;

According to the preset composition rule, a target is selected from the intro, the interlude, the interlude and the endluo, and the target and the main melody are spliced in order to generate a song.

The invention also provides an automatic composition device, the device includes:

A first acquisition module, configured to acquire more than three start sounds input by a user;

A processing module, configured to perform chord decomposition on the three or more start notes input by the user and perform chord inversion after the chord decomposition according to the harmony theory;

Arpeggio sequence generation module is used to randomly generate four arpeggio sequences corresponding to chords after the chords are transposed;

A second acquisition module, configured to acquire a song type selected by the user;

A first obtaining module, configured to assign corresponding music elements to the four arpeggio sequences according to the preset composition rule and the song type to obtain an intro, an intro, an interlude, and an ender;

A second obtaining module, configured to randomly tune a melody corresponding to the song type from the music library to obtain a main melody;

A song generating module is configured to select the intro, the intro, the interlude, and the end in accordance with the preset composition rule, and splice the target and the main melody in order to generate A song.

The present invention also provides a computer device including a memory and a processor. The memory stores computer-readable instructions. When the processor executes the computer-readable instructions, the steps of the method according to any one of the foregoing are implemented.

The present invention also provides a computer non-volatile readable storage medium on which computer readable instructions are stored, and when the computer readable instructions are executed by a processor, the steps of the method according to any one of the foregoing are implemented.

Beneficial effect

According to the above technical solution, the present invention has the beneficial effect that the song is generated according to a preset composition rule by the user's input starting sound and song type, and does not require the user to have a certain knowledge of music theory, and the user can compose, which aims to solve the current problem. Some automatic arranger software require users to have a certain knowledge of music theory before they can use it smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flowchart of an automatic composition method provided by an embodiment of the present invention;

2 is a functional block diagram of an automatic composition device provided by an embodiment of the present invention;

FIG. 3 is a schematic block diagram of a structure of a computer device provided by an embodiment of the present invention.

Best Mode of the Invention

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

As shown in FIG. 1, an embodiment of the present invention provides an automatic composition method. The method includes the following steps:

Step S101: Acquire more than three start sounds input by a user.

More than three start sounds input by the user are obtained. In this embodiment, three start sounds input by the user are obtained.

Enter the composition UI interface, the user clicks to create a new song, and enters more than three of the multiple notes. There can be multiple input methods, which is convenient for different users to input.

In this embodiment, step S101 includes:

Get more than three start sounds input by the user clicking the virtual button.

The initial sound is displayed by using a virtual key to simulate a piano keyboard. The user clicks the virtual key to input more than three initial sounds, and obtains the initial sound corresponding to the user's click on the virtual key. User input that understands humming notes.

In some embodiments, in step S101, the method includes:

Get more than three start sounds input by the user using peripherals.

In this embodiment, the automatic composition device is connected to an external device, and the user inputs more than three start sounds through the external device. Specifically, taking the external device as an electronic keyboard as an example, by connecting with the electronic keyboard, when the user plays the electronic keyboard At this time, the electronic keyboard generates and outputs electric signals corresponding to the notes played by the user, and according to the electric signals, three or more starting sounds played by the user can be obtained, which is convenient for the user.

In some embodiments, in step S101, the method includes:

Get more than three start sounds for voice input.

The user hums three or more start sounds, receives three or more start sounds from the user, and extracts three or more start sounds, simplifying the acquisition of three or more start sounds, even if he does not understand how to operate Users of piano keyboards can also create music by humming, which is convenient for users to input the initial sound.

Step S102: According to the harmony theory, perform chord decomposition on the three or more starting sounds input by the user and perform chord inversion after the chord decomposition.

Step S103: After the chords are transposed, randomly generate four arpeggio sequences corresponding to the chords.

According to the harmony theory, the three or more starting sounds obtained by the user are processed. The processing method is to perform chord decomposition first, and then perform chord inversion. After the chord inversion is completed, four arpeggio sequences are randomly generated, where the four arpeggio sequences correspond to the chords.

Specifically, three start sounds are taken as an example for explanation. The chord decomposition of the three start sounds is specifically: adjusting three arbitrary start sounds to all within one octave, and naming the root sounds from low to high, Three and five tones. After the chord decomposition, the chord transposition is performed. The chord transposition is specifically: the chord with the lowest note is called the home chord, and the chord inversion is called with the third and fifth notes. The third chord can have For two transpositions, the lowest transposition with three notes is the first transposition (sixth chord), and the transposition with the fifth note is the second transposition (fourth and sixth chords). After the chords are transposed, the arpeggio sequence is specifically: the arpeggio sequence is randomly selected from the corresponding original chords, six chords, four or six chords, and from low to high (up) or from high to low (down) ) Repeat regularly.

Step S104: Acquire a song type selected by the user.

After the user finishes entering more than three start sounds, the user is required to select a song type, and after the user finishes selecting the song type, the song type selected by the user is obtained.

In this embodiment, the song type includes song style and song emotion.

In this embodiment, step S104 includes:

Get the song style and song emotion selected by the user.

After the user finishes inputting more than three start sounds, the song style pops up for the user to choose. After the user selects one of the song styles, the song emotion pops up for the user to choose. The user needs to choose an emotion from the song emotions. After the user completes the selected song style and song emotion, the song type selected by the user is obtained. In the case where the user does not have knowledge of music theory, composition is performed by selecting a song type.

In some embodiments, in step S104, the method includes:

Gets the song style selected by the user.

After the user finishes inputting more than three starting sounds, a song style pops up for the user to select, and after the user selects one of the song styles, the song type selected by the user is obtained. In the case where the user does not have knowledge of music theory, composition is performed by selecting a song type.

In some embodiments, in step S104, the method includes:

Get the song emotion selected by the user.

After the user finishes inputting more than three starting sounds, the song emotion pops up for the user to select, and after the user selects one of the song emotions, the song type selected by the user is obtained. In the case where the user does not have knowledge of music theory, composition is performed by selecting a song type.

The above-mentioned song styles include pop, classical, jazz and folk songs; the above-mentioned song emotions include happiness, sadness, freshness and nostalgia.

Step S105, according to the preset composition rules and song types, assign corresponding music elements to the four arpeggio sequences to obtain intros, intros, endoss, and endos;

Step S106: Randomly tune a melody corresponding to the song type from the music library to obtain the main melody;

Step S107: Select among the intro, intro, interlude and ending according to the preset composition rules, splicing the target and the main melody in order to generate a song.

After generating the four arpeggio sequences, according to the preset composition rules, combined with the song type selected by the user, the corresponding four elements of the arpeggio sequence are assigned. After completing the four elements of the arpeggio sequence, obtain Intro, Intro, Endo and Endo. After obtaining four pieces of intro, intro, end, and ending, according to the song type selected by the user, randomly select a corresponding melody from the music library to obtain the main melody. The music library contains a large number of Song MIDI format, and classified by song style, song emotional tags. The target is selected according to the preset composition rule. If the structure of the preset composition rule is five-section, the five-section pattern is intro, intro, main melody, end intro, and end intro, the target is selected as intro. , Intro, interlude, and ending, if the preset composition structure in the composition rules is three-stage, the three-stage is the intro, main melody, and ending, then select the target as intro, ending, if By default, the composition structure in the composition rules is two-stage, and the two-stage composition is the intro and main melody. The target is selected as the intro. Take the five-section style as an example. After obtaining the intro, intro, end, and ending, randomly select a melody corresponding to the type of song from the music library to obtain the main melody. After the five pieces of music, interlude, ending, and main melody, the prelude, interlude, main melody, interlude, and endluo are spliced in order to generate songs and complete the composition. Compose according to the five intro, intro, intro, end, and main melody, making the composition difficult and efficient.

Generate songs based on more than three start sounds entered by the user and the song type selected by the user, combined with preset composition rules. This is to automatically generate songs according to preset composition rules, and does not require the user to set the song according to the basic theoretical knowledge of music, and further does not require the user to have a certain knowledge of music theory.

In this embodiment, the preset composition rules are written according to the music rules, including basic music theory, scales, arpeggios, harmony, polyphony, orchestration, rhythm, and melody structure. Specifically, the preset composition rules are based on factors such as basic music theory, scales, arpeggios, harmony, polyphony, orchestration, rhythm, tempo, and melody structure, and different parameters are set for specific styles and emotions. For example, in the jazz style, the scales use the blues scale, and the arpeggios and harmonies perform the corresponding changes in the blues scale. The orchestration uses the saxophone template, and the rhythm is mostly split. bpm random, emotion is sad, the speed is set to 60-70 bpm random; the genre can be divided into five parts: intro, intro, main melody, end intro, end intro, and intro, main melody, and end Style, intro, main theme two-stage, etc. The above factors are set for the other parts of the melody. The main melody is adjusted from the music library compiled by the musician according to the specific parameters of the selected style and emotion, and the existing melody segment is adjusted, and then the melody segment is horizontally, vertically, transposed, shifted, reflected, retrograde, enlarged, and reduced. Transform to increase the degree of freedom of the main theme. The main accompaniment uses the corresponding style and emotion texture template written by the musician.

For example, the song type selected by the user is sentimental. The preset composition rules arrange basic music theory, scales, arpeggios, harmony, polyphony, orchestration, rhythm to the four arpeggio sequences, and make the four arpeggio sequences. The obtained intro, intro, interlude, and ending are in a sad type, and the intro, prelude, interlude, and endluo are played to make the user listen. It feels sad.

The four arpeggio sequences include the first and second arpeggio sequences, both of which are ascending or descending arpeggios, and the third and fourth arpeggio sequences, which are both ascending or descending arpeggios. In step S105, they include:

Select the first arpeggio sequence and the second arpeggio sequence as the arpeggio and intro arpeggio respectively;

According to the preset composition rules and song types, arrange the music elements required for the intro to the first arpeggio sequence to obtain the intro;

According to the preset composition rules and song types, arrange the music elements required for the prelude to the second arpeggio sequence to obtain the prelude;

Selecting the third arpeggio sequence and the fourth arpeggio sequence as the arpeggio of the interlude and the arpeggio of the ending;

According to the preset composition rules and song types, arrange the music elements required for the interlude to the third arpeggio sequence to obtain the interlude;

According to the preset composition rules and song types, arrange the music elements required for the ending of the fourth arpeggio sequence to obtain the ending.

For the intro and intro, you need to select both the arpeggio sequence of the up and down arpeggios, and for the end and intro, you also need to select the arpeggio sequence of the up or down arpeggios at the same time. One arpeggio sequence, the second arpeggio sequence, the third arpeggio sequence, and the fourth arpeggio sequence arrange the music elements required for the intro, intro, end, and end, respectively, to obtain the intro. , Intro, end intro, end intro.

Specifically, the intro and intro are both selected ascending or descending arpeggios, and the intro and ending are both selected ascending or descending arpeggios; the harmony is randomly selected from the corresponding original chords, sixth chords, fourth and sixth chords, each The two beats appear once; the orchestration and rhythm use a large number of templates written by musicians as background tracks.

In this embodiment, specifically, the music elements are arranged by corresponding four arpeggio sequences, including harmony, orchestration, and rhythm. The preset composition rules include basic music theory, scales, arpeggios, harmony, polyphony, Orchestration, rhythm and melody structure, etc., need to correspond to different song styles and song emotions respectively. By analyzing the melody of the arpeggio sequence, select the best chord for accompaniment, and then determine the accompaniment sound according to the selected song style and song emotion. Type, orchestration, and rhythm. Specifically, the user enters the three starting sounds mi, la, and xi through the simulated piano keyboard on the UI interface, and selects the song style as folk songs and the song emotion as nostalgia. These three starting notes are trichotomized and then chord-inverted to generate four arpeggio sequences corresponding to the chords, and then input the four arpeggio sequences into the preset composition rules and according to the selected folk style and nostalgia The mood is arranged so that the melody of the four arpeggio sequences corresponds to the gentle and beautiful style of folk songs and nostalgia, so as to determine the accompaniment pattern and accompaniment that match the four arpeggio sequences. The pattern corresponds to the gentle and beautiful style of the Arpeggio sequence, and chooses a gentle, smooth and beautiful harmony in the music library according to the accompaniment pattern, song style and song emotion, and then presets the composition rules according to the selected song style and song emotion Select the accompaniment instrument as the gourd, and then synthesize the four arpeggio sequences and the harmony played by the gourd to add the accompaniment rhythm and accompaniment of the most suitable user-selected song style and song emotion to the four arpeggio sequences. Musical instruments to enrich the content of the work.

Specifically, when the song style selected by the user is rock and the emotion of the song is happy, the three start notes of mi, la, and xi are first decomposed into three chords, and then the chords are transposed to generate four arpeggios corresponding to the chords. Sequence, then analyze and arrange the melody of the four arpeggio sequences according to the preset composition rules, make the melody of the four arpeggio sequences correspond to the shock and fast-paced style of rock, and determine the four arpeggio sequences. Accompaniment pattern, the accompaniment pattern corresponds to the rock style, so select the heavy metal harmony in the music library, and select the accompaniment instrument for the drum and electronic guitar through preset composition rules, and then change the arpeggio sequence and the drum and The accompaniment of the electronic guitar is used to synthesize the harmonies, and finally output the four-segment arpeggio sequence that completes the music elements of the four-segment arpeggio sequence.

Specifically, when the user enters the three starting sounds of mi, la, and xi, and selects the song style as popular, and the song emotion is fresh, the three starting sounds of mi, la, and xi are first decomposed and then performed. Chord inversion, randomly generate four arpeggio sequences corresponding to the chord. Specifically, you can select four arpeggio sequences corresponding to the chord from the music library. The music library includes all the possibilities for the decomposition of the third chord. The arpeggio sequence is input into the preset composition rule. The preset composition rule analyzes the melody of the four-segment arpeggio sequence, and then re-arranges the four-segment arpeggio sequence melody according to the popular style selected by the user and the fresh mood mode to conform to the popular And fresh style characteristics, and determine the popular and fresh style accompaniment patterns that match the four arpeggio sequences, select the harmony that corresponds to the song style and song emotion from the music library, and the accompaniment instruments are guitars and drums, etc. , And play to generate accompaniment harmonies completed by guitars and drums, and finally synthesize four arpeggio sequences and accompaniment harmonies to output a complete process. A sequence of four arpeggios arranged by musical elements.

In step S107, the method includes:

If the target includes an ending, set the ending of the ending to the root of the third chord.

When selecting a target according to a preset composition rule, if the target includes an ending, the ending of the ending is set to the root of the third chord, and the ending of the ending sound stays at the root of the third chord to make the song officially end.

In step S107, the method includes:

Get the song format selected by the user;

According to the song format, a song corresponding to the song format is generated.

During the song generation process, a selection box pops up to let the user select the song format. Song formats include MIDI, MP3, and staff notation. The user selects one of MIDI, MP3, and staff notation. After the user makes a selection, according to the song mode selected by the user, Continue to generate songs, users choose the format of the generated songs according to their preferences or habits, in order to better read and understand the song information.

In step S107, the method includes:

Get the song duration selected by the user;

According to the duration of the song, adjust the target and the duration of the main melody according to the preset proportions of the total length of the intro, intro, interlude, ending, and main melody;

Generate a song of a duration corresponding to the duration of the song.

During the song generation process, a pop-up selection box for the user to select the song duration is displayed. The song duration includes 30 seconds, 60 seconds, and 90 seconds. The user selects one of 30 seconds, 60 seconds, and 90 seconds. After the user makes a selection, The length of the song selected by the user, according to the preset proportions of the intro, intro, interlude, ending, and main melody respectively, adjust the target and main melody duration to generate a song corresponding to the duration of the song. Different, the intro, intro, interlude, ending, and main melody each have different preset proportions for the total duration. The user selects the duration of the song according to their preferences or habits to better adapt to the user's listening habits.

For example, in a five-segment style, the percentage of the total duration of each part is approximately: 20% intro, 10% intro, 40% in melody, 10% in interlude, 20% in end; 30-second songs: Intro 6s, Interlude 3s, Main Melody 12s, Interlude 3s, Endo 6s; Songs of 60 seconds duration: Intro 12s, Prelude 6s, Main Melody 24s, Interlude 6s, Endo 12s.

After step S107, the method includes:

The generated songs are sorted and stored according to the selected song type.

Songs are sorted and stored, including pop, classical, jazz, folk, happy, sad, fresh and nostalgic. Specifically, the songs are classified according to the song types selected by the user, so that the songs are labeled with tags corresponding to the selected song types, which facilitates the management of the composed songs.

After step S107, the method includes:

Add the generated song to the accompaniment track and mix it to get a multi-track work.

By adding accompaniment tracks to songs, such as piano, guitar, bass, and drums, etc., specifically, by obtaining accompaniment files corresponding to the selected song type in the music library and synthesizing multi-track works with the generated songs, the work is made More plump and more contagious.

After adding the generated song to the accompaniment track and performing a mixing operation to obtain a multi-track work, the method includes:

The generated multi-track song is synthesized with a pre-recorded human voice source file to obtain a song audio file.

By adding human voice source files to songs, and synthesizing pre-recorded human voice source files with multi-track songs through speech synthesis technology, a complete song audio file can be produced, which can meet the needs of commercial applications.

In summary, the pre-established preset composition rules and music library are used for composition. The music library contains a large number of songs and is classified according to the song style and song emotional tags. The preset composition rules include substrate music theory, scales, arpeggios, and harmony. , Polyphony, orchestration, rhythm, and melody structure, corresponding to different song styles and song emotional tags. At the same time, according to the harmony theory, three chords are decomposed by the user and then chord inversion is performed. Randomly generated Four arpeggio sequences corresponding to chords, and then the corresponding music elements of the four arpeggio sequences are arranged according to the preset composition rules and the song style and song emotion selected by the user. The main melody is randomly selected and adjusted in the music library. The melody corresponding to the selected song style and the emotional label of the song. The ending of the ending is set to the root of the third chord. Finally, the five music pieces are stitched in order, and the song is finally output. The songs are created automatically, and the song creation efficiency is high, and the song style and song emotion selected by the user are added to the generated songs, which conforms to the user's preferences and improves the user experience. The song is generated according to the preset composition rules by the user's starting sound and song type. It does not require the user to have a certain knowledge of music theory, and the user can compose. The purpose is to solve the existing automatic arrangement software that requires the user to have a certain Only the knowledge of music theory can be used smoothly.

As shown in FIG. 2, an embodiment of the present invention provides an automatic composition device 1. The device 1 includes a first acquisition module 11, a processing module 12, an arpeggio sequence generation module 13, a second acquisition module 14, a first acquisition module 15, The second obtaining module 16 and the song generating module 17.

The first obtaining module 11 is configured to obtain more than three start sounds input by a user.

In this embodiment, the first obtaining module 11 includes:

The first sub-click acquisition module is used to acquire more than three start sounds input by a user clicking a virtual button.

In some embodiments, the first obtaining module 11 includes:

The first sub-peripheral acquisition module is configured to acquire more than three start sounds input by a user using a peripheral.

In some embodiments, the first obtaining module 11 includes:

The first sub-speech acquisition module is configured to acquire more than three start sounds of a voice input.

The processing module 12 is configured to perform chord decomposition on three or more starting sounds input by the user and perform chord inversion after the chord decomposition according to the harmony theory.

The arpeggio sequence generating module 13 is configured to randomly generate four arpeggio sequences corresponding to the chords after the chords are transposed.

The second acquisition module 14 is configured to acquire a song type selected by the user.

In this embodiment, the song type includes song style and song emotion.

In this embodiment, the second obtaining module 14 includes:

The second sub-obtaining module is used to obtain the song style and song emotion selected by the user.

In some embodiments, the second obtaining module 14 includes:

The second sub-obtaining module is used to obtain the song style selected by the user.

In some embodiments, the second obtaining module 14 includes:

The second sub-obtaining module is used to obtain the song emotion selected by the user.

The first obtaining module 15 is configured to assign corresponding music elements to four arpeggio sequences according to preset composition rules and song types, and obtain intros, intros, endos, and endos;

The second obtaining module 16 is used to randomly tune a melody corresponding to a song type from the music library to obtain a main melody;

A song generating module 17 is used for selecting intro, intro, interlude and ending according to preset composition rules, and splicing the target and the main melody in order to generate a song.

The four arpeggio sequences include the first and second arpeggio sequences, both of which are ascending or descending arpeggio, and the third and fourth arpeggio sequences, which are both ascending or descending arpeggio.

The first selection module is used to select the first arpeggio sequence and the second arpeggio sequence as the arpeggio and intro arpeggio respectively;

The intro module is used to arrange the music elements required for the intro to the first arpeggio sequence according to preset composition rules and song types to obtain the intro;

Prelude module, which is used to arrange the music elements required for the prelude to the second arpeggio sequence according to the preset composition rules and song types to obtain the prelude;

A second selection module, configured to select the third arpeggio sequence and the fourth arpeggio sequence as the arpeggio of the interlude and the arpeggio of the ending;

The interlude module is used to arrange the music elements required for the interlude to the third arpeggio sequence according to the preset composition rules and song types to obtain the interlude;

The ending module is used to arrange the music elements required for the ending of the fourth arpeggio sequence according to the preset composition rules and song types to obtain the ending.

The song generation module 17 includes:

The ending sound module is used to set the ending sound of the ending to the root of the third chord if the target includes the ending.

The song generation module 17 includes:

The first sub-song format obtaining module is used to obtain the song format selected by the user;

The second sub-generating module is configured to generate a song in a format corresponding to the song format according to the song format.

The song generation module 17 includes:

The first sub-song duration acquisition module is used to obtain the song duration selected by the user;

The length adjustment module is used to adjust the duration of the target and the main melody according to the preset proportions of the total length of the intro, intro, interlude, and main melody according to the duration of the song;

The third sub-generating module is used to generate a song of a duration corresponding to the duration of the song.

Device 1 includes:

The first classification storage module is configured to classify and store the generated songs according to the selected song type.

Device 1 includes:

The first multi-track generating module is configured to add the accompaniment track to the generated song and perform a mixing operation to obtain a multi-track work.

The device 1 further includes:

A first synthesizing module is configured to synthesize the generated multi-track song with a pre-recorded human voice source file to obtain a song audio file.

As shown in FIG. 3, a computer device is also provided in the embodiment of the present application. The computer device may be a server, and its internal structure may be as shown in FIG. 3. The computer device includes a processor, a memory, a network interface, and a database connected through a system bus. Among them, the computer design processor is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer-readable instructions, and a database. The memory provides an environment for operating systems and computer-readable instructions in a non-volatile storage medium. The database of the computer equipment is used to store data such as models of the automatic composition method. The network interface of the computer device is used to communicate with an external terminal through a network connection. The computer-readable instructions are executed by a processor to implement an automatic composition method.

The above processor executes the steps of the above-mentioned automatic composition method: obtaining more than three start sounds input by a user; performing chord decomposition on the three or more start sounds input by the user according to the harmony theory and performing the chord decomposition Chord inversion; after chord inversion, randomly generate four arpeggio sequences corresponding to the chords; obtain the song type selected by the user; according to the preset composition rule and the song type, the four arpeggios Arrange the corresponding music elements in the sound sequence to obtain the intro, intro, end, and end; randomly select a melody corresponding to the type of song from the music library to obtain the main melody; A target is selected from the intro, the intro, the interlude and the endluo, and the target and the main melody are spliced in order to generate a song.

In one embodiment, the four arpeggio sequences include the first and second arpeggio sequences, both of which are ascending or descending arpeggios, and the third and fourth arpeggio sequences, which are both ascending or descending arpeggios. In the preset composition rule and the song type, the steps of assigning corresponding music elements to the four arpeggio sequences to obtain intro, intro, interlude, and ender include:

Selecting the first arpeggio sequence and the second arpeggio sequence as the arpeggio of the intro and the arpeggio of the intro;

According to the preset composition rule and the song type, arrange the music elements required for the intro to the first arpeggio sequence to obtain the intro;

According to the preset composition rule and the song type, arrange the music elements required for the prelude to the second arpeggio sequence to obtain the prelude;

According to the preset composition rule and the song type, assigning the music elements required for the interlude to the third arpeggio sequence to obtain the interlude;

According to the preset composition rule and the song type, the fourth arpeggio sequence is arranged with the music elements required for the ending to obtain the ending.

In one embodiment, according to the preset composition rule, a target is selected from among the intro, the intro, the interlude and the end, and the target and the main melody are spliced in order. The steps to generate a song include:

If the target includes the ending, the ending of the ending is set to the root of a third chord.

In one embodiment, the step of obtaining the song type selected by the user includes:

Obtaining the song style selected by the user; or

Obtaining the song emotion selected by the user; or

Acquire the song style and song emotion selected by the user.

In one embodiment, the above-mentioned preset composition rules are written according to music rules, including basic music theory, scales, arpeggios, harmony, polyphony, orchestration, rhythm, and melody structure.

Obtaining a song format selected by the user;

According to the song format, a song in a format corresponding to the song format is generated.

Obtaining the song duration selected by the user;

According to the duration of the song, the target and the duration of the main melody are adjusted according to a preset proportion of the total length of the intro, the intro, the interlude, the end and the main melody, respectively. ;

A song of a duration corresponding to the duration of the song is generated.

Those skilled in the art can understand that the structure shown in FIG. 3 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied.

The computer device according to the embodiment of the present application generates songs according to preset composition rules based on a start sound and a song type input by a user, and does not require the user to have a certain knowledge of music theory, and the user can compose, which aims to solve the existing automatic Arrangement software requires the user to have a certain knowledge of music theory before it can be used smoothly.

An embodiment of the present application further provides a computer non-volatile readable storage medium, which stores computer-readable instructions. When the computer-readable instructions are executed by a processor, the processes of the embodiments of the foregoing methods are implemented.

The above description is only the preferred embodiments of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection of the present invention. Within range.

Claims

An automatic composition method, characterized in that the method includes:

Get more than three start sounds input by the user;

Performing chord decomposition on the three or more start notes input by the user and performing chord inversion after the chord decomposition according to the harmony theory;

After the chords are transposed, four arpeggio sequences corresponding to the chords are randomly generated;

Obtaining a song type selected by the user;

Arrange corresponding music elements to the four arpeggio sequences according to the preset composition rule and the song type to obtain intro, intro, end and end

Randomly select a melody corresponding to the song type from the music library to obtain the main melody;

According to the preset composition rule, a target is selected from the intro, the interlude, the interlude and the endluo, and the target and the main melody are spliced in order to generate a song.
The automatic composition method according to claim 1, wherein the four-segment arpeggio sequence includes first and second arpeggio sequences, both of which are ascending or descending arpeggios, and the first arpeggio sequence, which are both ascending or descending arpeggios. Three or four arpeggio sequences. According to the preset composition rules and the song type, the four arpeggio sequences are assigned corresponding music elements to obtain intros, preludes, endings, and endings. The steps to play include:

Selecting the first arpeggio sequence and the second arpeggio sequence as the arpeggio of the intro and the arpeggio of the intro;

According to the preset composition rule and the song type, arrange the music elements required for the intro to the first arpeggio sequence to obtain the intro;

According to the preset composition rule and the song type, arrange the music elements required for the prelude to the second arpeggio sequence to obtain the prelude;

Selecting the third arpeggio sequence and the fourth arpeggio sequence as the arpeggio of the interlude and the arpeggio of the ending;

According to the preset composition rule and the song type, assigning the music elements required for the interlude to the third arpeggio sequence to obtain the interlude;

According to the preset composition rule and the song type, the fourth arpeggio sequence is arranged with the music elements required for the ending to obtain the ending.
The automatic composition method according to claim 1, wherein a target is selected among the intro, the intro, the interlude and the endluo according to the preset composition rule, The step of splicing the target and the main melody in order to generate a song includes:

If the target includes the ending, the ending of the ending is set to the root of a third chord.
The automatic composition method according to claim 1, wherein, in the step of acquiring a song type selected by the user, comprises:

Obtaining the song style selected by the user; or

Obtaining the song emotion selected by the user; or

Acquire the song style and song emotion selected by the user.
The automatic composition method according to claim 1, wherein the preset composition rules are written according to music rules, and include basic music theory, scales, arpeggios, harmony, polyphony, orchestration, rhythm, and melody structure.
The automatic composition method according to claim 1, wherein a target is selected among the intro, the intro, the interlude and the endluo according to the preset composition rule, The step of splicing the target and the main melody in order to generate a song includes:

Obtaining a song format selected by the user;

According to the song format, a song in a format corresponding to the song format is generated.
The automatic composition method according to claim 1, wherein a target is selected among the intro, the intro, the interlude and the endluo according to the preset composition rule, The step of splicing the target and the main melody in order to generate a song includes:

Obtaining the song duration selected by the user;

According to the duration of the song, the target and the duration of the main melody are adjusted according to a preset proportion of the total length of the intro, the intro, the interlude, the end and the main melody, respectively. ;

A song of a duration corresponding to the duration of the song is generated.
An automatic composition device, characterized in that the device includes:

A first acquisition module, configured to acquire more than three start sounds input by a user;

A processing module, configured to perform chord decomposition on the three or more start notes input by the user and perform chord inversion after the chord decomposition according to the harmony theory;

Arpeggio sequence generation module is used to randomly generate four arpeggio sequences corresponding to chords after the chords are transposed;

A second acquisition module, configured to acquire a song type selected by the user;

A first obtaining module, configured to assign corresponding music elements to the four arpeggio sequences according to the preset composition rule and the song type to obtain an intro, an intro, an interlude, and an ender;

A second obtaining module, configured to randomly tune a melody corresponding to the song type from the music library to obtain a main melody;

A song generating module is configured to select the intro, the intro, the interlude, and the end in accordance with the preset composition rule, and splice the target and the main melody in order to generate A song.
The automatic composition device according to claim 8, wherein the four-segment arpeggio sequence includes first and second arpeggio sequences, both of which are ascending or descending arpeggio, and Three or four arpeggio sequences, the first obtaining module includes:

A first selection module, configured to select the first arpeggio sequence and the second arpeggio sequence as the arpeggio of the intro and the arpeggio of the intro;

An intro module, configured to arrange the first arpeggio sequence with the music elements required for the intro according to the preset composition rule and the song type to obtain the intro;

A prelude module, configured to arrange the second arpeggio sequence according to the preset composition rule and the song type, and obtain the prelude;

A second selection module, configured to select the third arpeggio sequence and the fourth arpeggio sequence as the arpeggio of the interlude and the arpeggio of the ending;

The interlude module is configured to arrange the third interval of the arpeggio sequence to the music elements required for the interlude according to the preset composition rule and the song type, to obtain the interlude;

The ending module is used to arrange the fourth arpeggio sequence with the music elements required for the ending according to the preset composition rule and the song type to obtain the ending.
The automatic composition device according to claim 8, wherein the song generating module comprises:

The ending sound module is configured to set the ending sound of the ending to the root of a third chord if the target includes the ending.
The automatic composition device according to claim 8, wherein the second acquisition module comprises:

A second sub-obtaining module, configured to obtain a song style selected by the user; or

A second sub-obtaining module, configured to obtain the song emotion selected by the user; or

The second sub-obtaining module is configured to obtain the song style and song emotion selected by the user.
The automatic composition device according to claim 8, wherein the preset composition rules are written according to music rules, including basic music theory, scales, arpeggios, harmony, polyphony, orchestration, rhythm, and melody structure.
The automatic composition device according to claim 8, wherein the song generating module comprises:

A first sub-song format obtaining module, configured to obtain a song format selected by the user;

A second sub-generation module is configured to generate a song in a format corresponding to the song format according to the song format.
The automatic composition device according to claim 8, wherein the song generating module comprises:

A first sub-song duration acquisition module, configured to obtain a song duration selected by the user;

A time length adjustment module, configured to adjust the target according to a preset ratio of the intro, the intro, the interlude, the end, and the main melody to the total time according to the duration of the song And the duration of the main theme;

A third sub-generation module is configured to generate a song of a duration corresponding to the duration of the song.
A computer device includes a memory and a processor. The memory stores computer-readable instructions, and is characterized in that the processor implements an automatic composition method when executing the computer-readable instructions, and the automatic composition method includes:

Get more than three start sounds input by the user;

Performing chord decomposition on the three or more start notes input by the user and performing chord inversion after the chord decomposition according to the harmony theory;

After the chords are transposed, four arpeggio sequences corresponding to the chords are randomly generated;

Obtaining a song type selected by the user;

Arrange corresponding music elements to the four arpeggio sequences according to the preset composition rule and the song type to obtain intro, intro, end and end

Randomly select a melody corresponding to the song type from the music library to obtain the main melody;

According to the preset composition rule, a target is selected from the intro, the interlude, the interlude and the endluo, and the target and the main melody are spliced in order to generate a song.
The computer device according to claim 15, wherein the four-segment arpeggio sequence includes first and second arpeggio sequences that are both up or down arpeggios, and the third arpeggio sequence that is both up or down arpeggios And a four-segment arpeggio sequence, and according to the preset composition rule and the song type, the four arpeggios sequence is assigned corresponding music elements to obtain an intro, an intro, an end intro, and an end intro The steps include:

Selecting the first arpeggio sequence and the second arpeggio sequence as the arpeggio of the intro and the arpeggio of the intro;

According to the preset composition rule and the song type, arrange the music elements required for the intro to the first arpeggio sequence to obtain the intro;

According to the preset composition rule and the song type, arrange the music elements required for the prelude to the second arpeggio sequence to obtain the prelude;

Selecting the third arpeggio sequence and the fourth arpeggio sequence as the arpeggio of the interlude and the arpeggio of the ending;

According to the preset composition rule and the song type, assigning the music elements required for the interlude to the third arpeggio sequence to obtain the interlude;

According to the preset composition rule and the song type, the fourth arpeggio sequence is arranged with the music elements required for the ending to obtain the ending.
The computer device according to claim 16, wherein a target is selected in the intro, the intro, the interlude, and the end in accordance with the preset composition rule, and The step of splicing the target and the main melody in order to generate a song includes:

If the target includes the ending, the ending of the ending is set to the root of a third chord.
The computer device according to claim 17, wherein in the step of acquiring the song type selected by the user, comprises:

Obtaining the song style selected by the user; or

Obtaining the song emotion selected by the user; or

Acquire the song style and song emotion selected by the user.
A computer non-volatile readable storage medium having computer-readable instructions stored thereon, characterized in that when the computer-readable instructions are executed by a processor, an automatic composition method is implemented, and the automatic composition method includes:

Get more than three start sounds input by the user;

Performing chord decomposition on the three or more start notes input by the user and performing chord inversion after the chord decomposition according to the harmony theory;

After the chords are transposed, four arpeggio sequences corresponding to the chords are randomly generated;

Obtaining a song type selected by the user;

Arrange corresponding music elements to the four arpeggio sequences according to the preset composition rule and the song type to obtain intro, intro, end and end

Randomly select a melody corresponding to the song type from the music library to obtain the main melody;

According to the preset composition rule, a target is selected from the intro, the interlude, the interlude and the endluo, and the target and the main melody are spliced in order to generate a song.
The computer non-volatile readable storage medium according to claim 19, wherein the four-segment arpeggio sequence includes first and second arpeggio sequences that are both upward or downward arpeggios, and both are upstream Or the third and fourth arpeggio sequences of the descending arpeggios. According to the preset composition rules and the song type, the corresponding four elements of the arpeggio sequence are arranged to obtain intros and interludes. , Interlude, and Ending steps include:

Selecting the first arpeggio sequence and the second arpeggio sequence as the arpeggio of the intro and the arpeggio of the intro;

According to the preset composition rule and the song type, arrange the music elements required for the intro to the first arpeggio sequence to obtain the intro;

According to the preset composition rule and the song type, arrange the music elements required for the prelude to the second arpeggio sequence to obtain the prelude;

Selecting the third arpeggio sequence and the fourth arpeggio sequence as the arpeggio of the interlude and the arpeggio of the ending;

According to the preset composition rule and the song type, assigning the music elements required for the interlude to the third arpeggio sequence to obtain the interlude;

According to the preset composition rule and the song type, the fourth arpeggio sequence is arranged with the music elements required for the ending to obtain the ending.