JP3225543B2 - Electronic musical instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument, and more particularly to a technique for enhancing performance expression of an electronic musical instrument provided with a performance operator such as a pad (means for instructing sound generation by manual operation). .

[0002]

2. Description of the Related Art Electronic rhythm instruments equipped with pads are known. In this type of rhythm electronic musical instrument, a plurality of pads are provided with a function as a rhythm operator for instructing the generation of individual percussion sounds or an operator for instructing the generation of musical tones of individual pitches. In a rhythm electronic musical instrument having an automatic performance function, a manual (user) performance using a pad can be added to music that is automatically performed. However, once a tone for which the pad instructs sound generation is set for the pad by the function setting operation, the type and pitch of the tone cannot be automatically changed in accordance with the progress of the music. In addition, one pad can indicate only a specific pitch. Also, a keyboard electronic musical instrument with a pad is known. This kind of electronic musical instrument combines the pad function as described above and the function as a keyboard electronic musical instrument, and also has the same problem as described above for the pad, that is, the performance that can be expressed by the pad. There is a limit.

[0003]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an electronic musical instrument with enhanced performance expression by performance operation means such as pads. In particular, it is an object of the present invention to provide an electronic musical instrument in which a desired musical tone can be instructed to be produced from this kind of performance operation means in accordance with the progress of music.

[0004]

[Summary of the action, according to the invention of claim 1, to extract a chord progression providing means for providing a chord progression, progression analyzes the chord progression tone and function
And tone and function progression extractor that, a performance operation means for instructing sound by a manual operation, a musical tone generating means for generating a musical tone in response to manual operation of said performance operation means, during manual operation of the performance operation means Is the key / function progress extraction means mentioned above
Electronic musical instrument is provided, characterized in that it comprises a number of sounds, the tone pitch control means for the upper SL tone generating means for controlling the number and pitch of the musical tone that occur on the basis of al given tone and function, the.
Furthermore, according to the second aspect of the invention, a code information inputting means for sequentially inputting the code information, and performance operation means for instructing generation of a musical tone by manual operation at any timing, manual operation on said performance operation means A musical tone generating means for generating a musical tone in response to a code information acquiring means for acquiring in real time the chord information inputted by the chord information input means at the time when the playing operation means is manually operated; a code information acquired by the code information acquisition unit, on the basis of the tone pitch determination element assigned in advance to the manual operated performance operation means, and the number of the tone to be generated is the tone generation means An electronic musical instrument comprising: a pitch number / pitch control means for determining a pitch in real time .

[0005]

[0006] According to the configuration of the claims 1 and 2, wherein, according to changes in the code information, for example, the code functions
The tone of the musical tone whose pitch and number
Can be instructed from the performance operation means in the
Will enable rich performances that can not be achieved .

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram when the present invention is applied to a keyboard musical instrument with a pad. FIG. 2 shows a layout of the instrument panel. The keyboard musical instrument with a pad includes, as the input device 3, a keyboard 30, a pad 33, and other panel switches and volumes required for controlling the musical instrument. The right hand region of the keyboard 30 constitutes a melody keyboard 31 for melody performance, and the left hand region constitutes an accompaniment keyboard 32 for inputting chord progression for accompaniment in the automatic accompaniment mode.
The pad 31 is an additional performance operator for instructing the generation of musical tones by tapping, and can be used to appropriately add a pad performance to the melody performance by the melody keyboard 31 and the accompaniment by the accompaniment keyboard 32.

The CPU 1 controls each part of the electronic musical instrument using the RAM 4 as a working memory according to a program stored in the ROM 2. In the automatic accompaniment mode,
The CPU 1 controls the sound source 5 in response to the operation of the melody keyboard 31 to generate a melody tone. Further, the CPU 1 responds to a chord designation operation of the accompaniment keyboard 31 as a chord progression input device, forms an accompaniment pattern suitable for the designated chord, controls the sound source 5 according to the formed accompaniment pattern, and generates musical tones of the accompaniment. . In order to perform a preferred accompaniment, this electronic musical instrument analyzes the chord progression (chord progression) input from the accompaniment keyboard, determines the function and key of each chord, and extracts the function and key progression. Includes features. The key / function determination function is the key / function stored in the ROM 2.
This is realized by a function determination program, a music knowledge database of chord progressions used in the program, and the CPU 1 which is the execution body of the program. The CPU 1 forms the above-mentioned accompaniment pattern on the basis of the key and the chord function which are the results of the determination by the determination function.

Further, the CPU 1 controls the sound source 5 in response to the operation of the pad 33 to generate a musical tone of the pad performance.
Here, the tone of the pad performance has a tone different from that of the melody and accompaniment to give the pad a function as an instrument different from the keyboard. Also, the tone of the pad performance is polyphonic, unlike the prior art. For example,
As shown in the pad table 21 of FIG. 3, the pad of PADNO1 has a tone color of BRASS, and instructs the generation of musical tones (pitches) 1, 2 and 3 of MAPNO (to be described later).
The pad of PNO2 has a tone of hit (HIT), and instructs MAPNO 2, 4, and 11 tones. Such a pad table 21 can be realized on the ROM 2 or the RAM 4.

Further, in accordance with the present invention, the electronic musical instrument has a pitch control function for controlling the pitch (combination of pitches) of the polyphonic musical tones of the pad performance based on the determination result of the key / function determination function. As a result, the tone pitch of the pad performance changes as the chord progresses.
This is because the pitch control function controls the pitch of the musical tone of the pad by the key and function at the time of operation of the pad 33 (accordingly, by the chord at the time of operation of the pad 33). In order to realize such a pad pitch control function, the ROM 2 is provided with a pad pitch map 22 partially shown in FIG.

The pad pitch map 22 has a row representing a chord function, and a specific row of the map 22 is designated by the chord function determined by the key / function determination function. The row (MAPNO) of the pad pitch map 22 represents a musical tone number, and a specific row of the map 22 is specified by the MAPNO data written in the pad table 21. Pitch data is written at the intersection of a row and a column of the pad pitch map 22. Pad pitch map 2 shown
According to 2, the function of the same MAPNO tone

[External character 1] When C4, function is

[External character 2] In the case of, it changes depending on the function, such as D4. As a result, the expressive power of the pad performance is dramatically increased. On the other hand, the same function (for example,

[External character 3] However, the pitch of the musical tone differs depending on the MAPNO. Therefore, as shown in the pad table 21, the MA
By making the combinations of PNOs different, a richer pad playing becomes possible.

FIG. 5 is a flowchart of a key / function determination program. This program is executed when a new chord is inputted from the accompaniment keyboard 32. First, the key / function determination program checks whether the preceding key (key before inputting a new code) is determined (5-1). If so, check to see if the new chord remains in sync (5-
2) If it is maintained (5-3), the leading key is set in the register KEY as the determination result, the function of the code evaluated in the preceding key is set in the register F, and the process returns (5-3).
4). If the tuning maintenance test is unsuccessful (5-6), the possibility of modulation is checked (5-5). When modulation is detected, (5-
6), the function of the new code evaluated in the key after modulation and the key in F after modulation is set in KEY and the program returns (5-7).
When the modulation is not detected or the leading key is not determined (5-1), it is checked whether the input code pattern up to the new code indicates the establishment of the key (5-).
8). When the establishment of the key is detected (5-9), the function of the new code evaluated by the key established in the KEY and the function established in the key established in the F is set and the process returns (5-10). If the establishment of the key is not detected, the key is determined to be indeterminate, the root of the new code is set in KEY, the type of the new code is set in F, and the routine returns (5-11).

FIG. 6 shows a PADON routine. This routine is executed when the pad 33 is operated. First PA
The DON routine checks whether the code is determined at the present time (6-1). If it is not fixed, the key is C,
As a function

[External character 3] is selected (6-2). If determined, KEY and F, which are the determination results of the key / function determination program, are respectively selected as the key / function (6-3). Subsequently, the column of the pad pitch map 22 is designated from the selected function, the row of the pad pitch map 22 is designated by the MAPNO data of the pad table 21, and the pitch data at the intersection of the designated row and column is padded. The pitch data is read from the pitch map 22, and the read pitch data is shifted (transposed) in a key (6-4). For example, if the key is D and the function is

[External character 3] If DAD4 is the pad pitch of PADNO1,
F # 4 and A4 are obtained (because C4, E4 and G4 read from the pad pitch map 22 are raised by the whole tone). Finally (6-5), a tone generation process of the sound source 5 is performed according to the obtained pitch data.

As is apparent from the above description, in this embodiment, the player plays the melody keyboard 31 with the right hand, and outputs the melody performance and accompaniment musical sounds via the acoustic system 6 with the left hand. Furthermore, if the pad 33 is hit as appropriate, the musical tones of the pad performance added to these performances are output with a pitch group that matches the progress of the melody accompaniment musically. Therefore, a musically favorable ensemble effect can be produced by the pad 33.

[0015]

[Modifications] The description of the embodiments has been completed above, but various modifications are possible within the scope of the present invention. For example, (A) a chord progression memory in which chord progressions are stored in advance is used instead of a chord progression input device such as an accompaniment keyboard. (B) Alternatively, a key / function progress memory in which the key / function progress is stored in advance is used. (C) Or other music progression (for example, AA '
Use a memory that stores musical expressions such as -BA ". (D) Pad pitch so that not only the pitch but also the number of notes changes depending on the music section (chord function, type of musical expression, etc.). (E) The key / function determination function is desirable, but not necessary, to match the pad pitch with the tonality of the melody, in which case the pad pitch map has all columns representing chord types. In operation, the pad pitch data read from the pad pitch map will be shifted at the root of the current chord (instead of the current key).

[0016]

As described above in detail, in the electronic musical instrument of the present invention, the pitch and the number of musical tones produced in response to the operation of the performance operation means such as pads are determined by the chord at the time of operation of the performance operation means. , The musical expression power of the performance operation means can be enhanced, and the performance in accordance with the progress of the music can be operated from the performance operation means.

[Brief description of the drawings]

FIG. 1 is a block diagram in a case where the present invention is applied to an electronic keyboard musical instrument with a pad.

FIG. 2 is a layout view of a musical instrument panel.

FIG. 3 is a diagram showing a pad table (located in a ROM or a RAM) for storing musical tone assignments to pads.

FIG. 4 is a diagram showing a pad pitch map for storing pad pitch assignments according to chord functions.

FIG. 5 is a flowchart of a key / function determination program.

FIG. 6 is a flowchart of a pad-on routine including pad pitch control based on chord functions and keys.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 CPU 2 ROM 3 input device 32 accompaniment keyboard (input chord progression) 33 pad (playing operation element) 21 pad table (storage of musical tone assignment of pad) 22 pad pitch map (pad pitch depending on chord function) Memorize data)

Claims (2)

(57) [Claims] 1. A and chord progression giving hand <br/> stage imparting chord progression, key to extract the progression analysis to tone and features the chord progression
· A function progression extractor, a performance operation means for instructing sound by a manual operation, a musical tone generating means for generating a musical tone in response to manual operation of said performance operation means, in the manual operation time point of the performance operation means Keys and functions above
Number sounds the upper SL tone generating means for controlling the number and pitch of the musical tone that occur on the basis of the tone provided from the traveling extraction means and feature-
An electronic musical instrument, comprising: pitch control means. 2. A code information input device for sequentially inputting code information.
Force means, performance operation means for instructing the generation of a musical tone by manual operation at an arbitrary timing, musical sound generation means for generating a musical tone in response to a manual operation on the performance operation means, and manual operation of the performance operation means a code information acquisition unit that acquires code information entered the code information input means at the time of the real-time, and the obtained code information in the code information acquisition unit,
The number of tones to be generated by the tone generating means and the number of pitches for determining the pitch in real time based on a pitch determining element previously assigned to the manually operated performance operating means.
An electronic musical instrument, comprising: pitch control means.