JP2640179C - - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] The present invention relates to a code processing apparatus. And code processing method Especially for chording or
The present invention relates to an improvement in the operation of code input. 2. Description of the Related Art Conventionally, various types of electronic musical instruments that simplify chord playing have been considered.
One of these is automatic chord form performance. This automatic chord form performance
Perform with the keyboard part of the keyboard while performing the dynamic rhythm performance
Automatically play chords by holding down the key of the chord component or by pressing once
Is repeated. Another one is one finger chord performance. This one finger code
The performance is performed with the keyboard for accompaniment on the keyboard, while still performing the automatic rhythm performance.
If you keep turning on any key or turn it on once,
The chord type whose chord root is
It is. If you keep turning on another key at the same time or turn it on once
, The chord type changes to minor, and another optional key is turned on at the same time.
If you continue or turn it on once, the chord type will change to 7th,
Change the chord type according to the number of keys pressed. [0004] The above-mentioned automatic chord form performance requires only pressing the keys of the chord components.
, It is easier to play chords or input chords.
It was difficult to use the fingers because all keys had to be operated. Also
The above-mentioned one finger chord performance makes it easy to use fingers,
The type cannot be more than the number of fingers, there are only 5 chord types at most
I couldn't play. [0005] The present invention has been made to solve the above-described problems, and includes a method for playing a chord.
Or the chord input operation becomes very easy,
An object is to provide a variety of code processing devices. [0006] In order to achieve the above object, the present invention provides a method for inputting numerical data such as a numeric keypad.
Depending on the stage, code type or code route can be switched and input
It is. This makes code entry easier and eliminates the need for difficult fingering.
It becomes numerical data input means for code type input and code root input
Can be used also as numerical data input means. Further, the present invention provides, in addition to the chord type and chord root currently being played,
The chord type and chord route to be played next are also displayed. [0008] Thereby, the contents of the chord to be played next can be known in advance, and the chord performance can be smoothly performed.
It can be carried out. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Overall Circuit FIG. 2 shows the overall circuit of the electronic musical instrument. Each key of the keyboard 1 is a key
The scan circuit 2 scans and detects data indicating key-on and key-off.
, Are written to the working RAM 6 by the CPU 5. And until then
Compare with the data indicating the on / off status of each key stored in King RAM6
The on / off event of each key is determined by the CPU 5.
You. The keyboard 1 is an electronic stringed instrument, an electronic wind (wind) instrument, an electronic percussion instrument.
(A pad or the like) or a computer keyboard or the like. Each key of the panel switch group 3 is scanned by the panel scan circuit 4.
It is. By this scanning, data indicating ON / OFF of each key is detected, and CP
The data is written to the working RAM 6 by U5. And working until then
It is compared with data indicating the on / off state of each key stored in the RAM 6,
The determination of the ON event and the OFF event of each key is performed by the CPU 5. Wa
The above data and various processing data stored in the working RAM 6 are stored in the LCD
(Liquid crystal display) 7 or LED (light emitting diode) 8
The corresponding display is performed. The pattern ROM 9 stores rhythm, bass, backing, and altitude for automatic performance.
Sequence information such as Pegio, Chord, Melody etc. is stored in advance for multiple songs.
I have. The ROM / RAM card 12 has a built-in ROM or RAM inside.
And stores the above-described sequence information, waveform data, and the like. data
Sequence information is also stored in the RAM 10, and this sequence information is
In addition to the data transferred from the ROM 9 or the ROM / RAM card 12,
Arranged data by rewriting transferred data or data newly created by the performer
And so on. The sequence performance processing of step 05 described later
OM9, data RAM 10 or a sequence stored in ROM / RAM card 12
This is performed based on the sense information. The program ROM 11 stores programs for the CPU 5 to perform various processes.
Remembered. The program ROM 11 further stores a code decoder and a code.
Memory 16 is formed, and other information is stored. Code decoding
When code data indicating the code type and code route is given, the code
The data corresponding to the key number data of each component sound of the code is read out.
The code memory 16 stores numerical data or key number data as shown in FIG.
If given, the code type or code root of the corresponding code is read
Things. The sound system 13 has a pitch and a key pitch corresponding to an ON key of the keyboard 1.
Or key-off velocity, sound according to panel switch group 3 on switch
A tone signal corresponding to a color or the like is generated. Here, the velocity refers to each key on the keyboard 1.
This is data indicating the speed or strength of the sounding operation of the key. This sound system 13
Is used for time-division processing for a tone generation system for multiple channels, for example, 16 channels.
The musical tone can be generated polyphonically. Each of these
Data relating to musical sounds assigned to channels is assigned to an assignment memory (shown in the figure).
Without). The sound system 13 reads various waveform data from the waveform ROM 14.
Extrusion is performed. This waveform data corresponds to the pitch, velocity, and timbre described above.
It has become. The MIDI interface 15 is connected to an externally connected electronic musical instrument.
Is an interface for transmitting and receiving musical sound data. This music data is MI
DI (musical instrument digital interface) standard,
A tone is also generated based on the tone data. [0015] 2. Code Memory 16 FIG. 1 shows a code memory 16 formed in the program ROM 11.
It is. The code memory 16 stores the two-digit numerical data when given.
Code data indicating the code route and code type according to the value data is read out.
It is. In this case, the numbers "00" to "11" are used for both the chord root and chord type.
This corresponds to the operation of keys 21 to 34 and volumes 35 to 38.
Either is selected by mode switching according to the operation. The above numerical data is
Is input from the ten keys 32 of the panel switch group 3 described below.
It may be input from an externally connected electronic musical instrument through the face 15. [0016] Even when key number data of pitches C1 to A5 are given, the code memory 16 stores a code route and a code type corresponding to the key number data.
Data is read. In this case, the key number data of the pitches C1 to B1
Duplicated for both root and code type, keys 21-34 and volumes 35-3
Either one is selected by the mode switching by the operation 8. In addition,
Is input from an externally connected electronic musical instrument through the MIDI interface 15.
May be input from the keyboard 1. In this case, the normal keena
In order to distinguish this data from MIDI data, a specific MIDI channel
Keyboard 21 and keys 21 to 34 and volume 35
It is distinguished by switching the mode by the operations of .about.38. [0017] 3. Panel Switch Group 3 FIG. 3 shows the panel switch group 3, the LCD 7 and the LED 8. Panel Sui
Switch group 3 includes an overdrive key (OVERDRIVE) 21 and a base key (B
ASS) 22, code key (CHORD) 23, tempo key (TEMPO) 24
,-Key 25a, + key 25b, start / stop key (START / STO)
P) 26, Fill in / Continue key (FILL IN / CONT) 27
, Intro / ending key (INTRO / ENDING) 28, edit
Key (EDIT) 29, Card key (CARD) 30, Demo key (DEMO) 3
1, numeric keys 32 of "0-9", special keys (SPECIAL) 33,
Turkey 34 and four volumes 35, 36, 37, 38, etc.
It has become. The overdrive key 21 is used to turn on / off the overdrive of the connected electronic musical instrument.
Is a key for switching. Overdrive is one of the musical effects,
This causes clipping distortion that clips the peak of the shape. Be
The ski 22 is a key for adjusting the volume of the bass part of the performance. Code key 2
Reference numeral 3 denotes a key for adjusting the volume of the chord part and the backing part of the performance.
The tempo key 24 is a key for displaying the value of the set tempo. The − key 25 a and the + key 25 b are used to change the range of the entire keyboard 1 in semitone units.
In addition to transposition, the display cursor on the LCD 7 is moved, and “YES (actually
Line) "and" NO (non-execution) "keys. Start / stop key
-26 started or stopped the automatic performance based on the sequence information
Key. The fill-in / continue key 27 is used to play bass and
Change chords by short phrases or continue playing automatically while performance is stopped
Key The intro / ending key 28 is used to enter the song at the beginning of the performance.
Play the toro phrase or play the ending phrase of the song at the end of the performance
Is the key. The edit key 29 is used for inputting sequence information for automatic performance.
Or a key for specifying an edit mode for correction. The card key 30 specifies access to the ROM / RAM card 12 described above.
Is the key. The demo key 31 is a key for designating a demonstration performance. Numeric keypad 32
Chord type, tone type, selection of song numbers for sequence information for multiple songs, etc.
A key for inputting various data such as types and values of various commands. Special key
-33 is operated in combination with the numeric keypad 32 to specify various modes,
Is the key to release. The enter key 34 is used for input data or command input.
This is a key for instructing processing. Volumes 35-38 are the volume of the rhythm sound,
To set the volume of the selected electronic musical instrument, the depth of the overdrive, and the tempo value.
You. By operating the ten keys 32, ten songs from “90” to “99” to be described later
Minute sequence information is selected, and the edit key 29 and other keys
By operating the 21-34 or the volume 35-38, the sequence information
Edit mode for entering or modifying the route and chord type is set.
You. In this mode, as shown in FIG.
Is entered. In the example of FIG. 12 (6), the first beat (“1”) of the second measure (“002”)
)), The performance chord changes to Adim (A diminished) at the 00th step (“00”). The number of steps is one that divides one beat into 48 equal parts.
Up. The number of measures, the number of beats, and the number of steps are determined by using the above-mentioned + key 25a and + key 25b.
Move the cursor and input the desired value using the numeric keypad 32.
It is. The chord root and chord type are also the same as those of the above-mentioned key 25a and key +2.
Use 5b to move the cursor and enter desired data with the numeric keypad 32
Is set by This data is as shown in FIG. In this case, the keyboard
It is also possible to input using code 1. By pressing the special key 33 and the numeric keypad 32 simultaneously, a mono code
The mode is set, and this mode is released by turning on only the special key 33.
It is. In this mono chord mode, only one chord is played in automatic performance, and
Mode is not changed. However, the key through the MIDI interface 15
When the number data is entered, it is changed to the code corresponding to this key number data.
You. This change is based on the code corresponding to the key number data input from the keyboard 1.
Alternatively, it may be a code corresponding to the numerical data input from the ten keys 32.
It should be noted that, even in a manual performance, a code is inputted from the ten-key
The chord performance may be performed by force. By pressing the special key 33 and one of the ten keys 32 simultaneously, the
The mode is set, and this mode is released by turning on only the special key 33.
It is. In this MIDI mode, the key
A reception channel number or the like for receiving musical sound data such as data is set. this
Key number data received on the channel numbered one lower than the receiving channel
Is converted into a code by the code memory 16 described above. The LCD 7 is controlled by operating the keys 21 to 34 and the volumes 35 to 38.
Only for the time, the input data or the input command corresponding to the operation key is switched and displayed. The current code and the next code are displayed on the LCD 7 during the automatic performance.
The LED 8 blinks at a speed corresponding to the set tempo. other than this,
Although not shown, a slot into which the ROM / RAM card 12 is inserted,
A connector for the interface 15 is also provided. [0026] 4. Data RAM 10 FIG. 4 shows the data RAM 10. This data RAM 10 contains software
Sequence information for ten songs from the song numbers "90" to "99" is stored.
. This sequence information is the chord progression data of the rhythm part and chord part.
However, melodies, basses, backings, arpeggios and other parts can be stored.
Noh. Also, the song number is not limited to “90” to “99”, and the number of songs is
Not limited to 10 songs. The sequence information of the song numbers “0” to “89”
Are stored in the pattern ROM 9 and the ROM / RAM card 12 described above.
This sequence information is directly used as the sequence information of the song numbers “90” to “99”.
Information, and arrange the songs with the sequence information of song numbers "90" to "99".
Or you can. Also, the sequence information newly input by the player
The numbers may be “90” to “99”. The sequence information includes a code consisting of code data and step time data.
Consists of data group, bar mark data and special commands such as return command
ing. Code data is data indicating a code type and a code route,
The musical sound data of the constituent sounds of this chord is set in an assignment memory (not shown).
The musical tone is pronounced. The step time data is the beginning of the song or the beginning of the measure.
In other words, start the tone generation or frame from the bar mark data according to the chord data.
This is data indicating the time until command execution. After this step time data,
When the values of the sequence clock counter 66 described above match, the code data
A corresponding musical tone is generated or a command is executed. This sequence
The counter 66 is incremented at a speed corresponding to the set tempo, and is incremented by one bar.
Cleared every count of. The bar mark data is data indicating a break of each bar. At the beginning of the sequence information, index data is stored.
Index data includes rhythm number data, song name data, time signature data
And tempo data. The rhythm number data is stored in the pattern RO
This shows the rhythm pattern number data stored in M9.
This rhythm pattern is played by automatic performance based on the sense information. Beat data, ten
The data is data indicating the time signature and tempo of the automatic performance based on this sequence information.
You. This time signature data is stored in the maximum beat number register 51 as the maximum number of beats.
The tempo data is stored in the tempo data register 46. Note that
The index data may include transpose data, etc.
Is stored in the transpose data register 45. The return command is a command for returning to the beginning of a song and repeating the song.
You. Special commands include return commands, stop commands, and end commands.
Command, part on / off command, variation change command
Chain song commands and fill-in commands. The stop command is
This is a command for immediately terminating the automatic performance. The ending command is
At the end of the automatic performance, the end stored in the pattern ROM 9 is read.
This is a command for ending the automatic performance by playing the playing pattern. Parto
ON / OFF command is used for melody, rhythm, bass, drum, hat,
Masking pronunciation for each performance part such as Ano, Violin, Flute, etc.
And commands to release masking. Variation
The change command and the chain song command are the sequence information being read.
Is a command to change to other sequence information. The fill-in command is
This is a command for performing one to several phrases of a ruin performance. The code data of the sequence information is represented by key number data, velocity data
, Part data, note data consisting of gate time data and step time data, or beat data consisting of velocity data and step time data, etc.
May be replaced with data. Also, the sequence information is the above step time data.
May be omitted. Here, the part data includes melody, chord, rhythm, bass, backing, and
Shows performance parts such as lupeggio, drum, hat, piano, violin, flute, etc.
Data. The tone number data is data indicating a tone color,
A tone number data register 47 of the working RAM 6 described later during the performance.
Is set to Gate time data is the time from the start of the tone to the end of the tone
Is the data indicating Gate time data is stored in the sequence clock
When the counter 66 is incremented, it is decremented conversely, and when it becomes "0", it is erased.
The sound is processed. The above sequence information includes a group of step areas for 48 steps per beat.
In each step area where the chord is pronounced or changed
Code data may be stored. In this case, each step area contains data
Is read out every 1/48 beats regardless of the presence or absence of. In addition, such a sequence
The special command described above may be stored in the application information. [0033] 5. Working RAM 6 FIG. 5 shows a part of the working RAM 6. This working RAM
6 includes a write protect flag register 41, a mode flag register 42,
Effect flag register 43, overdrive data register 44, transformer
Pause data register 45, tempo data register 46, tone number data
GISTER 47 ..., MIDI channel register 48, LED counter 50, maximum bee
Number register 51, LCD constant display register 61, LCD temporary display register 62
, Display timer register 63, tempo counter 65, sequence clock counter
66, a bar counter 67 and the like are formed. The write protect flag register 41 is a 10-bit register.
Write protection corresponding to the sequence information of the above 10 songs
Are stored. When the write protect flag is “1”, the sequence information
The rewriting of information is protected, and the protection of rewriting is released with "0".
You. This 1/0 may be an inverse characteristic. When various modes are set in the mode flag register 42, for example,
Flag when DIT mode, monocode mode, midi mode, etc. are set
Is set. Other mode flags are also set in this register 42. D
The effect flag register 43 is set by the overdrive key 21.
Each bit is set when various effects such as overdrive are set.
It is. The overdrive data register 44 receives the input from the volume 37.
Data indicating the depth of the overdrive is set. Transpose data
The register 45 stores the transaction input by the above-mentioned + key 25a and + key 25b.
The pose data is set. The tempo data register 46 stores the volume
Data indicating the value of the tempo input by the program 38 is set. This tempo
The data register 46 stores the tempo data in a time length of, for example, 1/48 of a beat.
The decoded tempo data converted to a value of 1/216 is also stored. The tone number data registers 47...
Shows the tone of the musical tone, tone number data and performance parameters such as melodies, chords and rhythms.
Is set. This tone number data is
The data is transferred to the assignment memory together with other data for each ring. Input to the MIDI channel register 48 through the MIDI interface 15
The received channel number n of the MIDI data is stored. A tone corresponding to the key number data and the like received on this reception channel is generated, and
Key number data received on the channel one number lower than the
The code is converted into a code by the code memory 16. The LED counter 50 is an LED
8 is a counter for counting the lighting time. Maximum number of beats register 51
Is set to the time signature data of the sequence information to be automatically played. This beat
The data may be a value multiplied by 48. The LCD constant display register 61 has a constant display data always displayed on the LCD 7.
Data is stored. The LCD temporary display register 62 temporarily stores the LCD 7
The temporary display data to be displayed is stored. These registers 61 and 62 correspond to the LCD 7
Has a storage area for the characters displayed in. For temporary display data,
21 to 34, input data or input command according to the operation of the volumes 35 to 38
Is displayed for a certain period of time, for example, 5 seconds, after this operation.
The constantly displayed data is displayed. The display timer register 63 stores the temporary display data.
Is a register for counting the display time. The tempo counter 65 stores the decode tempo in the tempo data register 46.
Data is accumulated at regular intervals, and the value for 1/48 beats, that is, 2 ¹⁶ Beyond Oh
When the overflow occurs, the sequence clock counter 66 is incremented by one. At this time,
A sequence performance process is executed. Sequence clock counter 66 has the maximum beat
When the value exceeds 48 times the number of data, the time length of one beat is counted.
And the bar counter 67 is incremented by one. In addition, the working RAM 6
Rhythm number data, song number of sequence information currently being played automatically, etc.
Is also stored. 6. Main Routine FIG. 6 shows a flowchart of the main routine. This process is powered
Start by throwing. In this process, the CPU 5 first operates the working RAM 6
Is performed (step 01), and each of the keys 21 to 34 of the panel switch group 3 and the on / off events of the volumes 35 to 38 are performed.
(Step 02), the input data of the keys 21 to 34 and the volumes 35 to 38 are input.
Panel switch processing corresponding to the data or input command is performed (step 03).
If the tempo counter 65 overflows (step 04), the
A cans performance process is performed (step 05). Next, the midi data is the midi I / O1
5 to determine whether or not it is received and stored (step 06).
A process corresponding to the midi data is performed (step 07). In addition, the keyboard
If there is a key-on event or key-off event in step 1 (step 08),
(Step 09). [0042] 7. Panel Switch Processing FIG. 7 shows a flowchart of the panel switch processing in step 03 described above.
is there. In this process, if the event key is the edit key 29 (
Step 11), 1/0 of the edit mode flag of the mode flag register 42
Is switched (step 12), and other key processing is performed (step 13). this
Other key processing includes setting and release of the above monocode mode, MIDI reception
Processing such as channel setting is executed. If the event key is the numeric keypad 32 (step 14), the editing
It is determined whether the default mode flag is set (step 15). Edith
If the default mode flag is set, it is determined whether or not it is in the chord route input state (
Step 16). This determination is made by the cursor display register (in the working RAM 6).
(Not shown). This cursor display register is
A register indicating in which of the 16 character display areas in 7 the cursor is displayed
It is. As shown in FIG. 12 (6), the value of this register is the twelfth digit of the total 16 digits.
If it is at the position of the chord root, it is determined that the chord root is being input, and 1
If it is located at the position of the code type after the third digit, it indicates that the code type is being input.
Determine. If the chord route is in the input state (step 16), the number of inputs of the ten keys 32
It is determined whether the value data is the first digit (step 17). If it is the first digit, this one digit
Is temporarily saved in an input buffer register (not shown) or the like (step
18). If it is the second digit, call the first digit
(Step 19), the code root data corresponding to both the numerical data is set to the pattern RO
Read from the code memory 16 of M9 and write to the edit register (not shown)
(Step 20). When the code type is in the input state (step 21), the ten keys 32
It is determined whether the input numerical data is the first digit (step 22). If it is the first digit,
Is temporarily saved in the input buffer register (not shown) or the like.
(Step 23). If the numerical data is the second digit, call the numerical data of the first digit.
Step (step 24) and put the code type data corresponding to both numerical data
Read from the code memory 16 of the ROM 9 and an edit register (not shown)
(Step 25). If it is not the chord root input state or the chord type input state (step 26),
Cursor data such as bar number data, beat number data, and step number data
Input to another edit register (not shown) according to the file position (step 27).
). In this edit mode, if the enter key 34 is operated
(Steps 28 and 29), the code data in the edit register is
Of the decrement RAM 10 according to the bar number data of the two edit registers.
Is transferred to the address in the sequence information area (step 30). In step 29 above
If not in the edit mode, enter processing of other data is performed (step 3).
1). If the edit mode flag is cleared in step 15 above,
According to the mode at the time of, the data input processing by the ten keys 32 is performed.
(Step 32). In this way, the chord route or chord type can be easily entered using the ten keys 32.
You can help. It should be noted that “00” of the numerical data input with the ten keys 32 is used.
"To" 11 "overlap and correspond to both the chord root and chord type.
It may not be duplicated. Also, the code route and code tie of step 14
The input of the loop may be performed by each of the keys C1 to A5 of the keyboard 1 described above.
. Further, key number data of each component sound of the chord data thus input.
May be written in the assignment memory to make it sound. [0048] 8. FIG. 8 shows a flowchart of the midi data processing in step 07.
You. In this process, the CPU 5 executes the music input through the MIDI interface 15.
The receiving channel of the sound data is the (n-1) channel, that is, the MIDI channel
Channel number one less than the MIDI reception channel number n of the register 48
It is determined whether or not (n-1) (step 41). (N-1) channel
It is determined whether the received tone data is key-on event data (step 4).
2). If it is key-on event data, the key number data is pitch C1 to B
1 (36 to 47) (step 43). If this key number data is for pitches C1 to B1, this key number data
The code route data corresponding to the data is stored in the code memory 16 of the pattern ROM 9.
Read and write to an edit register (not shown) (step 44). Also
If the key number data is for pitches C2 to A5 (step 45), this key
The code type data corresponding to the number data is stored in the code memo
Read from the memory 16 and write to an edit register (not shown).
Key of the composition tone according to the chord type and chord route in the edit register
The number data is written into the assignment memory and sounded (step 46).
. After that, it switches to playing this chord. In step 44, the code type is already written in the edit register.
If so, the chord performance is changed at this point. In addition, the above steps
In step 41, if the reception channel of the received tone data is other than the (n-1) channel
If it is, the normal tone generation processing is performed without converting it into a code (step 47). In this way, simply by inputting two key number (pitch) data, a code can be easily created.
You can enter the route and code type. Processing of steps 42 to 46
The processing is executed regardless of the monocode mode.
It may be executed only when. The numerical data is determined in step 42, and the numerical data is determined in steps 43 to 46.
The data may be converted into a code type and a code route according to the value data.
The processing in steps 42 to 46 is the same as the key processing and step in step 09 described above.
The processing may be executed in the panel switch process in step 03. 9. Sequence Performance Process FIG. 9 is a flowchart of the sequence performance process of step 05.
is there. This processing is performed when the tempo counter 65 overflows and the time of 1/48 beats is reached.
This is done when the time has elapsed. This sequence performance process is based on the chord sequence performance.
Processing and rhythm, melody, bass and other sequence performance processing other than chords.
After one process, the other process is performed.
Hereinafter, only the chord sequence performance processing will be described in detail. In this process, the CPU 5 clears the tempo counter 65 (Step 84)
, The sequence clock counter 66 is incremented by 1 (step 85). And this
It is determined whether or not the value of the sequence clock counter 66 is divisible by “48” (
Step 86). When the time for one beat has elapsed, the sequence clock counter 66
Is divisible by “48”. When the value of the sequence clock counter 66 is divisible by “48”, “11... 1” is set in the LED counter 50 (
(Step 87), the LED 8 is turned on (Step 88). This allows the
Each time the clock counter 66 is incremented by 48, ie, one beat
The LED 8 is switched from off to on every minute. Next, the value of the sequence clock counter 66 is set to the maximum beat number register 5
If the value exceeds 48 times the maximum beat number data in 1 (step 89), the sequence
The sclock counter 66 is cleared (step 90), and the bar counter 67 is set to +
1 is performed (step 91). Then, the sequence information is processed (step 92).
). This sequence information processing reads the code data etc. in the sequence information
, Data corresponding to the key number data of the constituent sound is assigned to an assignment memory and L
This is processing for transferring data to the CD 7, for example. 10. Sequence Information Processing FIG. 10 shows a flowchart of the sequence information processing of step 92 described above.
It is. In this process, the CPU 5 executes the step counter of the next information in the sequence information.
When the time data matches the value of the sequence clock counter 66,
Is read out (step 51). If not, return. This
If there is no tone information in the area read out (step 52), return as it is
I do. If there is music information, it is determined whether or not this music information is the last information (step).
53). If the information is at the end, processing such as return and end is performed (step 5).
4). If it is not the last information, it is code data. Then, the CPU 5 executes data or the like corresponding to the key number data of the constituent sounds of the chord.
Is set in the assignment memory, and the sound processing of the automatic performance according to this chord is performed.
(Step 55), and writes it to the LCD constant display register 61 (step 5).
7). This writing area is an area of the fifth to eighth characters of the LCD 7.
You. The tone generation processing in step 55 includes key number data, tone
Assign number data, velocity data, part data, on / off data, etc.
This is a process of writing to the memory and generating sound. At the time of this sound,
/ When the data is turned on and the sound is muted after the gate time has elapsed
Is turned off. In the case of chord data, the key number
Changes to the bad data are made. In the case of bar mark data, a flag is set.
, The sequence performance processing is not performed, and the sequence clock starts at the beginning of the next bar.
When the counter 66 is cleared, the flag is also cleared, and the sequence performance processing is performed.
Is resumed. Next, the CPU 5 reads the code data next to the current read address of the sequence information.
The step time data of the data is read (step 58). This step time
It is determined whether the data is greater than the value of the data for one measure (step 59). small
If so, the next code data is read out and stored in the LCD constant display register 61.
Write (step 60). This writing area is the eleventh character to
This is the 14th character area. At this time, the data of "→"
Data is also written. As a result, as shown in FIG.
The chord to be played next is displayed in addition to the chord, and the chord to be played next is known in advance.
. If it is determined in step 59 that the value is larger than the value of data for one measure, step
Step 60 is not performed. As a result, as shown in FIG.
If the chord continues for one or more measures, the chord to be played next is not displayed and the current chord is played.
You can see that the code inside lasts for a while. The target data to be determined in step 59 is one bar of data.
However, data of two or more measures may be used. Also, the processing of the above step 55
May be selectively executed by setting the mode of the keys 21 to 34 or the volumes 35 to 38. If the processing in step 55 is not performed,
The user can practice playing the chord on the keyboard 1 while watching the indicated chord. Sa
Further, in step 58, the next code data is read, and the next read code is read.
And compares the chord data with the currently playing chord data read out in step 51 above.
If it does not match, proceed to step 60, and if it matches, return
May be. In addition, the next information is read out in step 58, and
If the next information is not bar mark data, the process proceeds to step 60, where the bar mark data
Data, it may return. [0062] 11. FIG. 11 shows an interrupt process at regular time intervals. This process is
Timer processing that counts the clock signal that controls the entire consonant
The interrupt signal output periodically every fixed time regardless of the
5 when given. In this process, the CPU 5 sets the tempo counter 6
5, the decoded tempo data in the tempo data register 46 is accumulated (step 1).
01), the data set in step 87 of the LED counter 50 is decremented by one.
(Step 102). This decrement is performed for each interrupt process
Therefore, after a certain time, the value of the LED counter 50 becomes “0”. LED counter
When the value of 50 becomes "0" (step 103), the LED 8 is turned off (step 103).
104). As a result, switching from turning on the LED 8 to turning off the LED 8 is performed at the set tempo.
Irrespective of this, it is performed at regular intervals. Next, the CPU 5 sets the display timer register 63 in steps 14 and 18 described above.
The set time data is decremented (step 105). This decri
Is also performed every interrupt processing, so after a certain time, that is, after 5 seconds
, The value of the display timer register 63 becomes “0”. When the value of the display timer register 63 is
When it becomes "0" (step 106), the LCD is temporarily displayed in steps 13 and 17 described above.
The data set in the register 62 is cleared, and the data in the LCD constant display register 61 is cleared.
The data is sent to the LCD 7 (step 107). As a result, the transport from the operation of the-key 25a, the + key 25b or the overdrive key 21 is performed only for 5 seconds.
Is displayed, and then the original data is displayed. 12. Display Example of LCD 7 FIG. 12 shows the above-described temporary display switching of the LCD 7. Automatic performance mode
At the time of setting, the song number “00” of the sequence information selected as in (1) is set.
The song name "Z &Roll" and the first code "A7" are displayed. Automatic performance
The chord “Am” currently being played and the chord “E” to be played next are shown in (2).
aug "is displayed. When the same chord, for example "E7" continues during automatic performance
, Only this “E7” is displayed. In (1) and (2), the song number “
00 ”is also displayed. When the-key 25a and the + key 25b are operated, (4
), The transpose data of "Transpose" and "+1" are temporarily displayed.
Is shown. When the overdrive key 21 is operated, as shown in FIG.
Verdrive ”and data indicating on / off of“ on ”are temporarily displayed. Ko
When the edit mode is selected, the number of measures, number of beats,
The number of steps, chord root, and chord type are displayed. In this display example, the second
At the 00th step (“00”) of the first beat (“1”) of the bar (“002”),
This indicates that the performance chord changes to Adim (A diminished). this
The display is a continuous display. The present invention is not limited to the above embodiments, but may be variously modified without departing from the spirit of the present invention.
It is possible. For example, the keys for inputting the code data are numeric keys 32 and
It may be a favet key, a symbol key, a kana key, or the like. Also, data RAM1
The sequence information stored in 0 is not only data for one song, but also one to several measures.
It may be sequence information of one to several phrases and one to several motifs. Further
The sound system 13 may not be necessary, and in this case, the MIDI interface 15
Output data or sequence information to be written to assignment memory through
Will be. Embodiments of the present invention are as follows. (A) Character data
Character data input means for inputting the character data, and character data input by the character data input means indicating code type data indicating a code type or a code route.
Conversion means for converting to code root data, and
Output means for outputting code type data or code route data.
And a code processing device. (B) The input means inputs a code type
And means for inputting a code route.
Item A. The code processing device according to Item A. (C) A plurality of pitch input means for inputting pitch data
And input by at least one of the plurality of pitch input means.
That converts the pitch data that has been input into chord type data that indicates the type of chord
Type conversion means; and at least one other pitch input means among the plurality of pitch input means.
The chord root data indicating the chord root
Code route conversion means for converting the data into a code type
Code type data and code root data converted by root conversion means
Output means for outputting a code. As described in detail above, according to the present invention, character data, in particular, numerical data such as numeric keys are input.
Switch the chord type or chord route by entering
It was made. This makes it easier to enter chords and makes difficult fingering
This eliminates the need for
Can also be used as numerical data input means for inputting data. Also, the present invention provides a plurality of sounds.
Enter the chord type with at least one of the high pitch input means,
Both are designed to input a chord route with one. This allows the code
It is easy to play and can play many different chord types. Further, the present invention
In addition to the currently playing chord type and chord root, the chord type to be played next
And the chord root are also displayed. This allows you to play next
The contents of the chord can be known in advance, and the chord can be played smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing a code memory 16; FIG. 2 is an overall circuit diagram of the electronic musical instrument. FIG. 3 is a diagram showing keys 21 to 34, volumes 35 to 38, and the like of a panel switch group. FIG. 4 is a diagram showing a data RAM 10; FIG. 5 is a diagram showing a working RAM 6; FIG. 6 is a flowchart of a main routine. FIG. 7 is a flowchart of a panel switch process (Step 03). FIG. 8 is a flowchart of a midi data process (step 07). FIG. 9 is a flowchart of a sequence performance process (step 05). FIG. 10 is a flowchart of sequence information processing (step 92). FIG. 11 is a flowchart of an interrupt process at regular intervals. FIG. 12 is a view showing a display example of the LCD 7; [Explanation of Symbols] 3: Panel switch group, 5: CPU, 6: Working RAM, 10: Data R
AM, 25a ...- key, 25b ... + key, 32 ... numeric keypad, 33 ... special key, 41 ... write protect flag register, 42 ... mode flag register,
43: effect flag register, 44: overdrive data register, 45
... Transpose data register, 46 ... Tempo data register, 47 ... Tone number data register, 48 ... Mid channel register, 50 ... LED counter, 61 ... LCD constant display register, 62 ... LCD temporary display register, 63 ... Display timer register 65: tempo counter, 66: sequence clock counter, 67: bar counter.

Claims (1)

Claims: 1. A numerical data input means for inputting numerical data, wherein the input state of the numerical data input means is a code type input state indicating a code type and a code root indicating a code route. In accordance with the switching, the numerical data input by the numerical data input means is converted into code type data, or the numerical data input by the numerical data input means is converted into code root data. And the numerical data input as the code type is at least partially the same as the numerical data input as the code root, and the converted code type data or code root data is A code processing device characterized by outputting. 2. A numerical data input means for inputting numerical data, wherein an input state of the numerical data input means is switched between an input state of a code type indicating a code type and an input state of a code route indicating a code route. In response to this switching, the numerical data input by the numerical data input means is converted into code type data, or the numerical data input by the numerical data input means is converted into code root data. And the numerical data input as the code type is at least partially the same as the numerical data input as the code root, and the converted code type data or code root data is output. A code processing method characterized in that: 3. A chord storage means for storing chord type data indicating a chord type and chord root data indicating a chord root, wherein the chord type data and the chord root data are read in accordance with the progress of the performance. The read chord type data and chord root data are displayed, and the chord type data and chord root data of the next performance after the read chord type data and chord root data are further read from the chord storage means. The next read chord type data and chord root data are further displayed, and the chord type data and chord root data are read in accordance with the further progress of the performance.
A code processing device characterized in that display contents of data, next code type data and code route data are switched . 4. If the preceding chord type data and chord root data are separated from the chord type data and chord root data of the next performance by one or more measures or more, the chord type data and chord data of the next performance are provided. 4. The chord processing device according to claim 3, wherein the root data is not displayed, or the chord type data and chord root data of the next performance are not read. 5. If the previous chord type data and chord root data match the chord type data and chord root data of the next performance, the chord type data and chord root data of the next performance are displayed. 5. The code processing apparatus according to claim 3, wherein the code processing apparatus does not perform the processing. 6. A chord storage means for storing chord type data indicating a chord type and chord root data indicating a chord root, wherein the chord type data and the chord root data are read in accordance with the progress of the performance. The read chord type data and chord root data are displayed, and the chord type data and chord root data of the next performance after the read chord type data and chord root data are further read from the chord storage means. The next chord type data and chord root data that have been read out are further displayed, and the chord type data and chord root data are read in accordance with the further progress of the performance.
A code processing method characterized in that display contents of data and next code type data and code route data are switched .