JPH0458038B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic musical instrument that can generate accompaniment sounds based on stored data, and is used for melody performance by capturing and storing key data for generating accompaniment sounds when operating a memory command operator. This expands the possible key range.

2. Description of the Related Art Conventionally, electronic musical instruments that can play melodies and provide accompaniment such as chords have been known to have a multi-level keyboard, or to use a single-level keyboard divided into multiple key ranges.

However, according to these conventional techniques, when a wide key range is required for melody performance, there is no choice but to use a large electronic musical instrument with a large number of keys. In particular, single-keyboard electronic musical instruments have a dedicated accompaniment keyboard range, which means that the keyboard range for playing melodies is narrow, and the types of songs that can be played with this are limited.

An object of the present invention is to provide a new electronic musical instrument that has an expanded keyboard range that can be used for melody performance without increasing the number of keyboard stages or keys.

An electronic musical instrument according to the present invention includes: (a) a musical instrument main body having a keyboard; and (b) a memory provided in the musical instrument main body at a position that can be operated with the palm of the hand when pressing keys on the keyboard with the fingers of the hand. a command operator; (c) key press detection means for generating key data corresponding to a pressed key in response to a key press operation on the keyboard; (d) a key press detecting means for generating key data corresponding to a pressed key in response to a key press operation on the keyboard; (e) a data forming means for forming accompaniment sound key data for instructing an accompaniment sound to be produced based on the key data from the storage means; and (f) generating a musical tone signal corresponding to the pressed key according to the key data from the key press detection means, and generating the accompaniment tone key data according to the accompaniment tone key data from the data forming means. and musical tone generating means for generating an accompaniment tone signal to instruct the accompaniment tone signal.

According to the configuration of the present invention, for example, when a finger of the left hand performs a key pressing operation and the left palm operates the memory command operator, key data corresponding to the pressed key is registered in the storage means, and the key data corresponding to the pressed key is registered in the storage means. Accompaniment sound signals are automatically generated based on the key data related to registration. Therefore, the entire keyboard range can be used for melody performance except during registration.

The invention will now be described in detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 shows an electronic musical instrument according to an embodiment of the present invention.

The instrument body 10 is provided with a keyboard 12, and a power switch 1 is provided on the panel surface of the instrument body 10.
4, a plurality of timbre-related operators 16, a plurality of rhythm-related operators 18, etc. are provided.

The memory command operator 20 is a foot-operated switch, and is connected to an electric circuit within the musical instrument body 10. The storage command operator 20 is operated when registering key data detected from a predetermined lower key range of the keyboard 12 in the internal circuit as accompaniment sound generation key data.

Instead of the memory command operator 20, another memory command operator 20' or 20'' may be provided near the keyboard 12 to perform the same function as the memory command operator 20. The memory command operator 20 Reference numeral 20' consists of a press-type switch or a touch switch, and is arranged so that it can be operated with the lower part of the palm when pressing a key in the lower key area.Furthermore, the memory command operator 20'' consists of a press-type switch or a touch switch, It is arranged so that you can operate it with your fingertips when pressing keys in the lower key area.

FIG. 2 shows the circuit configuration of the electronic musical instrument.

The key switch circuit 22 includes key switches each corresponding to a large number of keys on the keyboard 12. The pressed key detection circuit 24 scans a large number of key switches in the key switch circuit 22 to detect a pressed key.
Key data UKD detected from the upper key range of keyboard 12
and key data detected from the lower key area of keyboard 12
LKD and LKD are now sent separately.

The upper key range key data UKD is supplied to the tone forming circuit 26. The musical tone forming circuit 26 is for melody,
Contains multiple tone-forming channels such as chords, arpeggios, basses, etc., and upper key range key data.
UKD is converted into a melody sound signal by a melody musical sound formation channel. And musical tone formation circuit 2
The melody sound signal from 6 is supplied to a speaker 30 via an output amplifier 28, and is produced as a melody sound.

The lower key range key data LKD is sent to the data distribution circuit 32
is supplied to The data distribution circuit 32 is a memory command operator 20 (20' or 20'' can also be used, the same applies hereinafter)
is off, the lower key range key data LKD is supplied to the musical tone forming circuit 26, while the storage command operator 20
is on, lower key range key data LKD is supplied to the data storage circuit 34. The data storage circuit 34 also includes a storage command operator 20.
The lower key range key data LKD from the data distribution circuit 32 is taken in and stored in response to an on signal from the data storage circuit 34, and the lower key range key data from the data storage circuit 34 is sent to the accompaniment tone key data forming circuit 36. is supplied to

The tempo oscillator 38 receives the tempo clock signal TCL.
The rhythm/accompaniment pattern data generator 40 generates a rhythm timing signal RP and accompaniment pattern data AP by reading out the contents of a pattern memory based on the tempo clock signal TCL. Accompaniment pattern data
As the AP, a chord timing signal, bass pitch data, arpeggio pitch data, etc. are generated, and all are supplied to the accompaniment key data forming circuit 36.

The accompaniment key data forming circuit 36 includes a chord detection circuit that detects a chord name (root note and chord type) and generates chord name data based on the lower key range key data from the data storage circuit 34, and a chord detection circuit that generates chord name data. a chord key data forming circuit that forms chord key data based on chord name data from the circuit and supplies the chord key data to a musical tone forming circuit 26 in response to a chord timing signal as accompaniment pattern data AP;
The tone forming circuit 26 generates base key data based on the chord name data from the chord detection circuit and the base pitch data as accompaniment pattern data AP.
The base key data circuit supplies the chord name data and accompaniment pattern data from the chord detection circuit.
A musical tone forming circuit 26 that forms arpeggio key data based on arpeggio pitch data as an AP.
and an arpeggio key data forming circuit for supplying data to the arpeggio key data.

The chord key data, base key data, and arpeggio key data supplied to the tone forming circuit 26 are converted into chord signals, bass tone signals, and arpeggio tone signals through corresponding tone forming channels, respectively. These chord signals, bass tone signals, and arpeggio tone signals are all sent to the output amplifier 28.
Since the sound is supplied to the speaker 30 via the speaker 30, chords, bass sounds, and arpeggio sounds are produced from the speaker 30.

The rhythm sound source circuit 42 generates a rhythm timing signal.
Rhythm sound signals are generated by driving various rhythm sound sources according to the RP.
This rhythm sound signal is supplied to the speaker 30 via the output amplifier 28, so the speaker 3
Rhythm sounds are also played from 0.

According to the above configuration, when any of the memory command operators 20, 20' or 20'' is off, the keyboard 12
The melody can be played in the entire key range of the keyboard 12, and when the memory command operator is on, the melody can be played in the upper key range of the keyboard 12, and the presses for accompaniment sound can be played in the lower key range of the keyboard 12. A key is possible. Furthermore, the easiest to operate among the memory command operators 20, 20', and 20'' is the memory command operator 20', which can be operated with the lower part of the palm when pressing a key, and even beginners can easily operate it. can.

In the above embodiment, the key range is divided into two parts, an upper key range and a lower key range, so that a melody can be played using some of the keys on the keyboard when registering the key data for accompaniment sound generation.
Key data from the entire key range may be supplied to the data distribution circuit 32 without performing such key range division. In this case, the pitch between each key data is detected, and those with narrow pitches are treated as key data for accompaniment sound generation, and those that are more than half an octave away from this key data for accompaniment sound generation are handled as key data for accompaniment sound generation. It may be treated as melody key data.

As described above, according to the present invention, the key data for accompaniment sound generation is captured and stored when the memory command controller is operated, so the keys are sufficiently wide without the need to particularly increase the number of steps or keys of the keyboard. It is possible to perform melodies with accompaniment in the range, and the keyboard can be used effectively. Furthermore, since the memory command operator is provided near the keyboard at a position where it can be operated with the palm of the hand when pressing a key, there is an advantage that even beginners can register accompaniment sounds extremely easily.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an electronic musical instrument according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the circuit configuration of the electronic musical instrument of FIG. 12...Keyboard, 20, 20', 20''...Storage instruction operator, 22...Key switch circuit, 24...Key press detection circuit, 26...Music tone forming circuit, 32...Data distribution circuit, 34 ...Data storage circuit, 36...
...accompaniment sound key data formation circuit, 40...rhythm/
Accompaniment pattern data generator.

Claims (1)

[Scope of Claims] 1 (a) a musical instrument body having a keyboard; (b) a memory provided in the musical instrument body at a position that can be operated with the palm of the hand when pressing keys on the keyboard with the fingers of the hand; a command operator; (c) key press detection means for generating key data corresponding to a pressed key in response to a key press operation on the keyboard; (d) a key press detecting means for generating key data corresponding to a pressed key in response to a key press operation on the keyboard; (e) a data forming means for forming accompaniment sound key data for instructing an accompaniment sound to be produced based on the key data from the storage means; and (f) generating a musical tone signal corresponding to the pressed key according to the key data from the key press detection means, and generating the accompaniment tone key data according to the accompaniment tone key data from the data forming means. An electronic musical instrument comprising musical tone generating means for generating an accompaniment tone signal for instruction.