JPH0367276B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic performance device that can generate accompaniment sounds such as chords, arpeggios, bass sounds, rhythm sounds, etc. based on stored music information. By storing special accompaniment pattern information unique to the performance song along with the note information of the performance song, it is possible to generate a wide variety of accompaniment sounds without increasing the storage capacity of the internal memory. be.

In conventional automatic performance devices,
Chord data is stored together with pitch data and note length data for a specific performance piece, and the pitch data and chord data are read out based on the note length data.
Melody sounds are generated according to the read pitch data, while chords, arpeggio sounds, and bass sounds are generated based on the read chord data. In addition, general accompaniment patterns that can be used in common to various performance pieces are stored in the internal memory, and by reading out these accompaniment patterns, autorhythm sounds are generated, and the accompaniment patterns that are read out are also used. The generation of chords, arpeggios, and bass sounds is controlled in synchronization with the rhythm.

One problem with such automatic performance devices is that they use common accompaniment patterns.
Accompaniment consisting of chords, arpeggio notes, bass notes, rhythm notes, etc. becomes monotonous.

In order to solve this problem, special accompaniment patterns called break patterns or fill-in patterns are stored in the internal memory, and based on the switch operation on the panel, a special accompaniment pattern can be created instead of a general accompaniment pattern. It has also been proposed to generate various accompaniment sounds according to a special accompaniment pattern of one or two measures by reading out the following.

However, there is a limit to the number of patterns that can be stored in the internal memory, and even if special accompaniment patterns are stored, these patterns must be used in common for various pieces of music, so it is necessary to use somewhat general patterns. Unavoidably, it was insufficient to eliminate the monotony of the accompaniment.

SUMMARY OF THE INVENTION An object of the present invention is to provide an improved automatic performance device capable of generating a wide variety of accompaniment sounds.

The automatic performance device according to the present invention stores general accompaniment pattern information in the internal memory, and also stores special accompaniment pattern information and pattern selection information unique to the performance song together with note information of the performance song. Along with reading out the information, pattern selection information is read out, general accompaniment pattern information or special accompaniment pattern information is read out based on the read out pattern selection information, and accompaniment sound is read out in accordance with either of the read out accompaniment pattern information. The feature is that the generation is controlled.

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

FIG. 1 shows an electronic musical instrument equipped with an automatic performance device according to an embodiment of the present invention.

The external recording means 10 is, for example, a magnetic tape on which music data related to a specific performance piece is recorded.
The recording data format is as shown in FIG. 2 as an example. In Figure 2,
PTN is special accompaniment pattern data that indicates a special accompaniment pattern unique to the performance song, IPS is initial accompaniment pattern specification data that specifies the accompaniment pattern at the start of performance, TCD is melody note, chord, arpeggio note,
Tone color data specifying the tone for each type of musical tone such as bass tone, rhythm tone, etc., and MPD are performance data that includes melody data, chord name data, and accompaniment pattern selection data according to the note progression of the performance song.
Note that as the external recording means, a perforated recording type, a bar code display type, etc. may be used.

The data reading device 12 reads music data from the external recording means 10, and among the read data,
Pattern related data PT (PTN or IPS mentioned above)
is supplied to a register 14, tone color data TCD to a tone color register 16, and performance data MPD to a performance data memory 18 consisting of a RAM (random access memory).

Special accompaniment pattern data PTN is first sent out in a serial format from the data reading device 12, and this data PTN is converted into parallel format data in the register 14. The special accompaniment pattern data PTN from the register 14 is supplied via the selector 20 to a special accompaniment pattern memory 22a consisting of a RAM in the accompaniment pattern memory device 22. At this time, the data reading device 12 is stored in the memory 22a.
Since the write control signal WT is supplied from the write control signal WT, the special accompaniment pattern data PTN is
is written into the memory 22a in accordance with the above. Note that a normal accompaniment pattern memory 22b consisting of a ROM (read only memory) of the accompaniment pattern memory device 22 stores in advance a plurality of sets of normal accompaniment pattern data that can be commonly used for various performance pieces.

Following the special accompaniment pattern data PTN, initial accompaniment pattern designation data IPS is sent from the data reading device 12 and stored in the register 14.

Initial accompaniment pattern specification data in register 14
The IPS is supplied to the accompaniment pattern memory device 22 via the selector 20, and specifies a set of normal accompaniment pattern data to be read out from the memory 22b.

Following the initial accompaniment pattern designation data IPS, timbre data TCD is sent from the data reading device 12 and stored in the timbre register 16.

After that, the performance data is sent from the data reading device 12.
The MPDs are sequentially transmitted and sequentially stored in the performance data memory 18 in the format shown in FIG. 3, for example. In Figure 3, MLP is melody pitch data, CHD is chord name data (consisting of root note data and chord type data), MLL
indicates melody note length data, PST indicates special accompaniment pattern designation data, and PED indicates special accompaniment pattern designation cancellation data.

Each note related to a melody is expressed as pitch data MLP and note length data MLL, and pitch data MLP and note length data MLL for each note are expressed as pitch data MLP and note length data MLL.
They are arranged sequentially as N ₁ , N ₂ , N ₃ . . . progress. In such a melody pitch/note length data array, chord name data corresponding to the first chord is inserted between note _N1 pitch data MLP and note length data MLL corresponding to the first melody note, and
The chord name data corresponding to each of the following chords is similarly inserted at the location where the chord is desired to be changed. Also,
The special accompaniment pattern designation data PST and the special accompaniment pattern designation cancellation data PED are inserted at a location where it is desired to change to a special accompaniment pattern and a location where it is desired to be changed to a normal accompaniment pattern, respectively.

Next, the automatic performance operation will be explained.

First, when a performance start switch (not shown) is turned on, the data reading circuit 24 reads melody pitch data MLP, chord name data CHD, and note length data corresponding to the first note _N1 from the performance data memory 18.
Read MLL sequentially. Here, note length data MLL
is read out, the time corresponding to the note length indicated by the note length data MLL is measured by counting the tempo clock signal TCL from the tempo oscillator 26, and when that time is reached, the time corresponding to the note length indicated by the note length data _MLL is measured. The pitch data MLP and note length data MLL are sequentially read out. A similar data read operation is then performed for each note after note _N3 .

Pitch data read out sequentially in this way
The MLP is supplied to a melody tone forming circuit 30 via a melody pitch register 28. The musical tone forming circuit 30 forms a musical tone signal corresponding to each pitch data from the register 28 based on the melody tone data from the tone color register 16, and supplies it to the speaker 34 via the output amplifier 32. Therefore, the speaker 34 produces an auto melody sound.

At the start of a performance, the accompaniment pattern memory device 22 stores a set of initially specified normal accompaniment pattern data as described above as a tempo clock signal.
It is read out from the memory 22b in accordance with the count output of the counter 36 that counts TCL. Therefore, the accompaniment pattern memory device 22 outputs the chord generation timing signal CDT and the arpeggio generation control data according to the initially specified normal accompaniment pattern.
AR, bass sound production control data BS, and rhythm timing signal RP for each type of percussion instrument are generated. Here, each arpeggio sound generation control data AR indicates which note from the root of the chord the arpeggio sound to be played is, and each base sound generation control data
BS indicates the pitch of the bass note to be sounded relative to the root note of the chord.

The rhythm timing signal RP for each type of percussion instrument is supplied to a rhythm tone forming circuit 38. This musical sound forming circuit 38 forms a rhythm sound signal by selectively driving various percussion instrument sound sources according to the rhythm timing signal RP, and the formed rhythm sound signal is sent to the speaker 34 via the output amplifier 32. Supplied. Therefore, the autorhythm sound is produced from the speaker 34 according to the initially designated normal accompaniment pattern.

Thereafter, when the special accompaniment pattern designation data PST is read from the performance data memory 18, this data PST is stored in the register 40. Then, the mark bit signal MB in the data PST =
Since "1" is supplied to the selector 20 as the selection signal SB, the signal of the special accompaniment pattern designation bit in the data PST is supplied to the accompaniment pattern memory device 22 via the selector 20, and the special accompaniment pattern data from the memory 22a is supplied to the accompaniment pattern memory device 22. command to read. Therefore, from the memory 22a, the counter 36
Special accompaniment pattern data is read out according to the count output, and chord generation timing signal CDT, arpeggio generation control data AR, and bass generation control data are read out.
Both the BS and the rhythm timing signal RP are generated according to a special accompaniment pattern.

When the rhythm timing signal RP is generated according to the special accompaniment pattern, the autorhythm performance pattern changes from one corresponding to the normal accompaniment pattern to one corresponding to the special accompaniment pattern.

Thereafter, when the special accompaniment pattern designation cancellation data PED is read from the performance data memory 18, this data PED clears the register 40. Therefore, the selection signal SB of the selector 20 becomes "0", and the accompaniment pattern memory device 22 is supplied with the initial accompaniment pattern designation data IPS from the register 14. Therefore, the chord pronunciation timing signal
CDT, arpeggio sound generation control data AR, bass sound generation control data BS, and rhythm timing signal RP are all generated according to the normal accompaniment pattern. As a result, the autorhythm performance pattern returns to that corresponding to the normal accompaniment pattern.

The first chord name data CHD read from the performance data memory 18 is stored in the chord register 42. Then, the chord name data in register 42
The CHD is supplied to the follower sound data forming circuit 44.

The subordinate note data forming circuit 44 forms subordinate note data based on the chord name data from the register 42, and uses the formed subordinate note data together with root note data as chord constituent note data in the chord tone forming circuit 46.
supply to. For example, if the chord name data CHD specifies C major, the tone forming circuit 46 is supplied with chord constituent tone data corresponding to the three tones C, E, and G.

The musical tone forming circuit 46 forms a chord signal based on the chord tone data from the tone color register 16 and the chord constituent tone data from the subtone data forming circuit 44, and the timing at which the formed chord signal is sent is set at the timing when the chord is produced. Controlled according to timing signal CDT. At this time, the chord generation timing signal
As mentioned above, the CDT is generated according to the normal accompaniment pattern. Musical tone forming circuit 46
The chord signal sent from the speaker 34 is supplied to the speaker 34 via the output amplifier 32.
From then on, autochord sounds are played according to the normal accompaniment pattern and in synchronization with the rhythm.

After that, when the second chord name data CHD is read out from the performance data memory 18, chord signal formation is performed in the same manner as described above, and the chord corresponding to the second chord name data is generated as an autochord sound. It will start to occur. Similarly, memory 18
The generated chord changes every time new chord name data is read from the . Additionally, as mentioned above, when the chord generation timing signal CDT starts to be generated according to the special accompaniment pattern, the autochord performance pattern changes from one corresponding to the normal accompaniment pattern to one corresponding to the special accompaniment pattern. do. After this, the chord sound timing signal CDT
When the autochord performance pattern starts to be generated according to the normal accompaniment pattern as described above, the performance pattern of the autochord returns to the one corresponding to the normal accompaniment pattern.

The arpeggio sound data forming circuit 48 generates a chord register 4 based on the arpeggio sound control data AR.
This is to form arpeggio sound data corresponding to the arpeggio sounds to be sequentially generated for each chord data from 2 onwards. Here, the arpeggio sound data is formed using arpeggio sound control data AR, as an example.
When indicates the first note, the root note data in the chord name data is sent as the first note data, and the data
When the AR specifies the second note, the root note data plus the interval data of the third is sent as the second note data, and when the data AR specifies the third note, the second note data is sent out.
This is done so that the sound data is further added with 3rd interval data and sent as third sound data. The arpeggio sound data from the data forming circuit 48 is supplied to an arpeggio tone forming circuit 50.

The musical tone forming circuit 50 receives arpeggio tone data from the tone register 16 and the data forming circuit 48.
The arpeggio sound signal is generated based on the arpeggio sound data from the arpeggio sound data, and the formed arpeggio sound signal is supplied to the speaker 34 via the output amplifier 32. Therefore, the speaker 34 produces an auto arpeggio sound.

When the chord register 42 sends out chord name data different from the previous one, new arpeggio note data is formed based on this chord data, so the auto arpeggio note changes in conjunction with the chord change. Furthermore, the performance pattern of the auto arpeggio is stored in the accompaniment pattern memory device 2, as in the case of the chords described above.
2 (that is, whether it is a normal accompaniment pattern or a special accompaniment pattern).

The bass sound data forming circuit 52 forms bass sound data corresponding to the bass sound to be produced based on the bass sound generation control data BS and the chord name data from the chord register 42. Here, the base note data can be formed by adding the base sound production control data BS, which is pitch data, to the root note data in the chord name data. The bass tone data from the data forming circuit 52 is supplied to a bass musical tone forming circuit 54.

The musical tone forming circuit 54 forms a bass tone signal based on the bass tone data from the tone color register 16 and the bass tone data from the data forming circuit 52, and the formed bass tone signal is sent via the output amplifier 32. The signal is supplied to the speaker 34. Therefore, the auto bass sound is produced from the speaker 34.

When the chord register 42 sends out chord name data different from the previous chord name data, new bass tone data is formed based on this chord name data, so the auto bass tone changes in conjunction with the chord change. Further, the performance pattern of the auto bass changes depending on the type of accompaniment pattern read from the accompaniment pattern memory device 22, as in the case of chords described above.

The keyboard 56 is for manual performance. The key switch circuit 58 is adapted to supply key press data indicating the keys pressed on the keyboard 56 to the tone forming circuit 60.

The musical tone forming circuit 60 forms a musical tone signal corresponding to the pressed key based on the tone data from the tone selector 62 and key press data from the key switch circuit 58, and the formed musical tone signal is sent to the output amplifier 32. is supplied to the speaker 34 via.
Therefore, the manual performance sound is also produced from the speaker 34.

The above-mentioned automelody, autorhythm, autochord, autoarpegillo, autobass, etc. can be selected to be produced or not produced as appropriate using a selection switch (not shown), so the performer can select his/her favorite auto-playing sound and select it. Manual performance can be performed along with the automatic performance sound.

FIG. 4 shows an electronic musical instrument equipped with an automatic performance device according to another embodiment of the present invention, and the same parts as in FIG. .

The main feature of the embodiment of FIG. 4 is the provision of a one-package type removable memory device 70 as music data storage means.

The memory device 70 includes a performance music data memory 70a consisting of a ROM, and a special accompaniment pattern memory 70b consisting of a ROM. memory 70
Initial accompaniment pattern designation data regarding a performance piece, timbre data for each musical tone type, and performance data are stored in the storage a, and the storage format of the performance data can be the same as that shown in FIG. Further, special accompaniment pattern data indicating a special accompaniment pattern unique to the performance song is stored in the memory 70b.

The normal accompaniment pattern memory 72 is composed of a ROM, and stores in advance a plurality of sets of normal accompaniment pattern data that can be commonly used for each performance piece.

Now, when the performance start switch (not shown) is turned on, the data reading circuit 74 reads the initial accompaniment pattern designation data IPS from the performance music data memory 70a.
is read out and supplied to the register 76. The data IPS stored in the register 76 is then supplied to the normal accompaniment pattern memory 72 and specifies a set of normal accompaniment pattern data to be read.
At this time, the memory 72 is receiving the output signal "1" from the inverter 78 as the enable signal EN, and is in the enabled state. For this reason, memory 7
In step 2, a set of initially designated normal accompaniment pattern data is read out in accordance with the count output of the counter 36. Accordingly, the memory 72 generates the chord generation timing signal CDT, the arpeggio generation control data AR, the base generation control data BS, and the rhythm timing signal RP in accordance with the initially specified normal accompaniment pattern.

Next, the data reading circuit 74 reads tone color data TCD for each musical tone type from the performance music data memory 70a.
Read out. Then, the read tone data TCD
are stored in the timbre register 16 and used when forming various musical tones. As described above, automatic rhythm performance is possible based on the rhythm tone data stored in the tone color register 16 and the rhythm timing signal RP.

Next, the data reading circuit 74 reads performance data from the performance music data memory 70a. In this case, the performance data reading operation is performed using the tempo clock signal TCL.
and note length data, and the first
This is similar to that described for the data readout circuit 24 in the figure. Since the melody pitch data MLP sequentially read out from the performance music data memory 70a is supplied to the melody pitch register 28, automatic melody performance is possible in the same manner as described above. Also,
Chord name data CHD read from memory 70a
is supplied to the chord register 42, so that auto chord, auto arpeggio, and auto bass performances can be performed in the same way as described above.

When the data reading circuit 74 reads the special accompaniment pattern designation data PST from the performance music data memory 70a while the auto melody performance is in progress, this data
PST is stored in register 80. and,
Mark bit signal MB in data PST = “1”
is supplied to the special accompaniment pattern memory 70b as an enable signal EN, thereby enabling the memory. At this time, the inverter 78 outputs the output signal "0" in response to the mark bit signal MB="1".
Since the normal accompaniment pattern memory 7
2 is in a disabled state.

In the enabled memory 70b, special accompaniment pattern data is read out in accordance with the count output of the counter 36. Therefore, from the memory 70b, the chord generation timing signal CDT and the arpeggio generation control data are generated according to the special accompaniment pattern.
AR, base sound generation control data BS, and rhythm timing signal RP are generated. As a result, the performance patterns of autorhythm, autochord, autoarpegillo, and autobass are all changed from those corresponding to the normal accompaniment pattern to those corresponding to the special accompaniment pattern.

After that, the data reading circuit 74 reads the special accompaniment pattern designation cancellation data from the performance data memory 70a.
When PED is read, this data PED is stored in register 8.
Clear 0. Therefore, the special accompaniment pattern memory 70b becomes disabled and
The normal accompaniment pattern memory 72 becomes enabled. Therefore, the chord pronunciation timing signal
CDT, arpeggio production control data AR, bass production control data BS, and rhythm timing signal RP are all generated according to the normal accompaniment pattern, and as a result, auto chord, auto arpeggio, auto bass, auto All rhythm performance patterns return to those corresponding to the normal accompaniment pattern.

Note that in the above embodiment, chords, arpeggio notes,
The generation of the bass sound and rhythm sound is controlled according to a special accompaniment pattern common to these accompaniment sounds, but a special accompaniment pattern dedicated to each accompaniment sound is stored, and when playing, each accompaniment sound is The generation of sounds may be individually controlled according to the corresponding special accompaniment pattern.

Furthermore, in the case of the embodiment shown in FIG. 4, performance music data and special accompaniment pattern data for a plurality of songs are stored in the removable memory device 70, and when a song is selected, the selected song is automatically played. You may also do so.

As described above, according to the present invention, general accompaniment patterns are stored in the internal memory, and performance data and special accompaniment pattern data are also stored for each song. A wide variety of automatic accompaniment can be performed. Furthermore, although such automatic accompaniment is possible, there is also the advantage that the storage capacity of the internal memory does not have to be increased much compared to the conventional fill-in pattern store method.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an electronic musical instrument equipped with an automatic performance device according to an embodiment of the present invention, FIG. 2 is a format diagram of externally recorded data, and FIG. 3 is a format diagram of performance data in a performance data memory. , FIG. 4 is a block diagram showing another embodiment of the present invention. 10... External recording means, 12... Data reading device, 14, 40, 76, 80... Register, 18
...Performance data memory, 20...Selector, 22
...accompaniment pattern memory device, 22a, 70b...
...Special accompaniment pattern memory, 22b, 72...Normal accompaniment pattern memory, 24, 74...Data reading circuit, 36...Pattern reading counter,
38... Rhythm tone forming circuit, 46... Chord tone forming circuit, 50... Arpegillo tone forming circuit, 54... Bass tone forming circuit, 70... Removable memory device, 70a... Performance piece data memory.

Claims (1)

[Claims] 1 Pitch information, note length information,
a storage means for storing accompaniment pattern information and accompaniment pattern selection information; a first reading means for reading out the pitch information and the accompaniment pattern selection information from the storage means based on the note length information; and the accompaniment pattern information. a storage device that stores accompaniment pattern information different from the accompaniment pattern information; a second reading device that reads accompaniment pattern information from the storage device or the storage device based on the read accompaniment pattern selection information; and the storage device or the storage device. An automatic performance device comprising accompaniment means for generating an accompaniment sound signal based on accompaniment pattern information read from the device.