JPS6075886A - Musical scale information processing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a scale information processing method in which a plurality of scale information inputted in advance into a memory is read out by operating a specific key and reproduced and emitted.

(Prior art) Conventionally, as a simple method for reproducing scale information, scale information is input into memory in advance, and each note is read out one by one each time a specific key is pressed, and the performer plays the song while adding note length. A scale reading method called so-called one-key play has been considered. In this case, the scale information is preset in the memory by the performer manually playing the song by operating the keys on the keyboard, and also by storing multiple pieces of musical tone information such as chords. It has also been considered to read out and play chords using the one-key play described above.

[Problems with conventional technology]

However, with the above-mentioned conventional method, it is not possible to read and play multiple tones of different note lengths with a single key, so it is impossible to reproduce a slightly complex musical score using one-key play. .

[Purpose of the invention]

It is an object of the present invention to provide a scale information processing method for an electronic musical instrument, which allows music pieces having a plurality of scales with different tone lengths to be reproduced and played in a specific key according to the musical score.

(Key Points of the Invention) When reading and reproducing scale information preset in a memory by operating a specific key, etc., it is determined whether ON information or OFF information of a plurality of scales has been read out consecutively, and whether the ON information or OFF information of a plurality of scales In this case, a means for simultaneously reproducing musical tones of a plurality of scales was provided.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a keyboard provided on the upper front side of the case body of the electronic musical instrument, and is provided with a plurality of keys. Also 2
Both A and 2B are one-key play keys, which can read out musical tone information of a predetermined music piece preset in a memory (data storage section), which will be described later, one by one by key operation and reproduce and emit the sound.

Furthermore, 3.4.5 is a reset key, an autoplay key, and a clear key, respectively, which are used when presetting musical tone information in the data storage section and when autoplaying using the musical tone information in this data storage section. Also, 6 indicates rhythm, tone designation, and other key groups ◇Mode switch 7 is OFF
FF (off mode), REO (recording mode), PLA
It has a Y (play mode) switching contact, and in the recording mode, musical tone information can be preset in the data storage section, and in the play mode, one-key play and auto play can be performed. Further, 8 in the figure is a sound emitting section.

Note that LSI (Large Scale Integrated Circuit) components, speakers, batteries, etc. are housed inside the case body.

In Figure 2, 9 is the above residence a1, one key play key.
2A, 2B, keys 3.4.5.6, and a mode switch 7, each key of this key power section 9,
The output from the switch is input to the control section 10. Control part 1
0 consists of a control program etc. that controls all operations of this electronic musical instrument, and outputs various micro commands in response to input signals from the key human power section 9. It then controls the calculation unit 11 to execute various calculations. In addition, the control unit 10 sends a read/write control signal R/W to the data storage unit 13.
and output address data ADR to read data;
Write. To this data storage section 13, musical tone information of a predetermined piece of music is inputted by key operations, and at the time of one-key play, the musical tone information is read from the data storage section 13.

In this case, at the time of the above-mentioned input, the scale data outputted by the control section 1o in accordance with the key output is manually input to the scale data buffer 14-a of the buffer 14, and is provided to the data storage section 13. Further, the count value of the tone length counter 17 is inputted as tone length data to the tone length buffer 14-b, and the data storage section 1
given to 3. On the other hand, during autoplay, note length data successively output from the data storage section 13 is input to the note length buffer 16, and the comparison circuit 15 compares this note length data with the count value of the note length counter 17. When the two match, the comparison circuit 15 outputs a match signal C and supplies it to the control section 10, and the control section 10 increments the data storage section 13 in response to this. Note that the chief counter 17 is reset by a reset signal R outputted from the control section 10 as appropriate.

The scale data read out from the data storage section 13 together with the note length data during one-key play and auto play is stored in the chord converting section 1 (18-a) and the chord converting section 2.
(18-b), the musical tone generating section 1 (19a), the musical tone generating section 2 (19-'b), The signal is applied to the musical tone generator 3 (19-C). Musical tone generator 1.
2.3 each creates a musical tone signal based on the inputted musical tone generation information, supplies it to the amplifier 20, and further outputs it to the speaker 21.
, the sound is emitted as a musical tone via the sound emitting section 8. Therefore, the electronic musical instrument in this embodiment has three musical tone generators 1.2.
It is a three-tone polyphony that can generate up to three musical tones simultaneously.

Next, the operation related to one-key play will be explained.

Let us now take as an example a case in which a song of the musical score shown in FIG. 3 is preset in the data storage section 13, and then the song is reproduced and emitted by one-key play.

First, the operation of inputting a music scale will be explained with reference to FIGS. 3 to 6. FIG. 4 shows a flowchart, key operation state, and tone generation state, FIG. 5 shows a storage state of the data storage section 13, and FIG. 6 shows a key operation state.

Now, after setting the mode switch 7 to REO (recording mode), first turn on the C key of the keyboard 1 and input that scale, and the note length data in the note length counter 17 will be stored in the note length buffer 14-b. First, it is transferred (processing in step S1 of the flowchart in FIG. 4). In this case, the initial note length data is dummy note length data that is not related to the performance, so
It doesn't matter what the value is. Next, the control section 1'0 outputs a reset signal R to reset the tone length counter 17 (step S2). Next, the dummy tone length data t is input to the tone length buffer 14-b. is 0 in the data storage section 13
address (step Ss), and then the control unit 10
increments the internal address counter (+1)
and set address 1 (Step □Step 84). Next, the control section 10 sends the determined scale data (ON information) to, for example, the chord conversion section 1, and provides the tone generation information to the tone generation section 1. Therefore, the musical tone generating section 1 generates a musical tone signal of the scale C, and the amplifier 20, the speaker 21, the sound emitting section 8
A sound is emitted via the (step Ss). Also, the control unit 10
also gives the scale data to the scale data buffer 14-a and writes it to address 1 of the data storage section 13 (steps So, 8q). Then add 1 to the address counter and set it to 2.
An address is set (step s,).

Next, when the key of C is turned off, the processing from step 81 onwards is executed again. First, in step S1, the count value t1 of the note length counter 17 is transferred to the note length buffer 14-b. Next, the tone length counter 17 is reset,
The next counting operation is prepared (step S2). And the above tone length data 1. is written to address 2 of the data storage unit 13 (step S3).Next, the address counter is incremented by 1 and address 3 is set (step S4), and then the control unit 10 writes the scale data C (OFF clear N). The musical note of scale C is thus muted (step SS).Then, the scale data is transferred to the scale data buffer 14-a, and the data storage unit 13
(Step 86, S). Then, address 4 is set by incrementing.

The preset processing for the second and third musical tones is the same as for the first musical tone C, and the explanation thereof will be omitted, but during this time, the address counter is incremented at address 122.

Next, when the keys of the three musical tones that are to be sounded simultaneously, the scale C, E, and G, are turned on in sequence, each scale data (ON information) is inputted in the order of, for example, the scale C, E, and G through the input processing of the control unit 10. It shall be assumed that In this case, the processes of steps 81 to S8 are repeated three times, and first, in the first process, as shown in FIG.
6 is set, and, for example, the scale data C (ON information) is transferred to the chord converting section 1 and the musical tone is emitted, and furthermore, the above scale data is written to address 133 of the data storage section 13. Similarly, in the second and third processing, preset processing is performed for the scales E and G of simultaneous pronunciation, and the tone length data of the 144th scale data Mi (ON information): +Jf7
．． The scale data at address 155 is input, the tone length data t8 at address 166 (ON information), and the scale data at address 177 are input. At the same time, the scale data (ON information) is transferred to the code converter 2, and the code converter 3
The scale data (ON information) is transferred to. the result,
The three musical tones of the scale C, E, and G begin to be produced in sequence and are then emitted simultaneously.

Next, while keeping the key of scale C on, turn off the keys of scale E and G sequentially.
The process is executed twice. That is, the process of turning off the key of the sound 1tl is executed first, and as shown in FIG.
88th scale data Mi (OFF information) tone length data t
9 is written, and the scale data at address 199 is also written. Then, the musical note of scale M is muted. Further, the tone length data tIo of the scale data number 200 (OFF information) is written, the tone length data tIo of the scale data number 211 is written, and the tone of the scale G is muted.

Next, while holding down the scale C key, turn on each of the next scale F and U keys in turn. As shown in Figure 4, the scale data file (O
N information) tone length data t11 and its scale data, tone length data t11 of scale data (ON information) 1. □ and its scale data are respectively written, and accordingly, the musical tones of the scale F and U are sequentially sounded, and the three musical tones are simultaneously emitted along with the musical tone of the scale C.

Then, when the three hands of the scale F, U, and C are turned off in sequence, the above-mentioned off processing is executed, and each scale data (OFF information) and note length data are written to the specified address.
Also, each musical tone is muted at the same time.

Further, the preset processing below the scale G is the same as described above.

Next, an explanation will be given of the operation of inputting accurate note lengths while performing one-key play for a song in which only the scale data of a song has been preset in the data storage section 13 as described above. In this case, the mode switch 7 is set to REC! (recording mode) and operate the reset key 3 to reset the storage section 13. Note that Figure @7 shows a flowchart and the state of musical tone generation, and Figure 8 is a diagram of the storage state of the data storage unit 13 that has been rewritten with accurate tone length data.
FIG. 9 shows the operating states of the one-key play keys 2A and 2B and the musical tones produced.

When, for example, two of the one-key play keys 2A and 2B are turned on, the tone length data of the tone length buffer 14 at that time is first written to address 0 of the data storage section 13 (step T+). As described above, this note length data at address 0 is not used as meaningless dummy note length data.

Next, after the note length counter 17 is reset, a counting operation is started (step T2), and the address counter is incremented by 1 to designate address 1 (step Ts). Next, the scale data "Do ON" (■t) at address 1 is read out, and is sent to the code conversion unit 1, for example, to start producing the musical note of the scale C (steps T4 and Ts).Then, the address counter is +2 to specify address 3 (step T6), and from there the scale data storage section is turned off'' (Hl
) is read out (step T?). Then Hl
The scale data of H1 and Hl are compared, and both H, and II2 are O.
It is determined whether the information is N (or 0FF) or apricot (step T
s). Since "DO ON°" and "DO OFF" are now being compared, the answer is "NO", and the process proceeds to step T9, where the address counter is incremented and address 2 is designated.

Next, when the one-key play key 2A is turned off after the length of a quarter note of the first musical note C has elapsed, the count value of the note length counter 17 at that time will be set to the exact length of a quarter note at address 2. Then, the tone length counter 17 is reset and counting operation starts again (step T).

Next, through the processing of steps T3, T4, and T, the scale data "Do OFF" (Us) is read from address 3 and sent to the code converter 1, and the first musical note "C" is sounded by the one-key play key 2A. Stops when turned off. Then, through the processes of steps T6, T7, and T8, the scale data "SHION" (■2) is read from address 5, and HI and ■■2 are compared. In this case as well, the answer is "NO", and step To
The address is moved back by one, and address 4 is specified.

Next, after turning off the one-key play key 2A for the first musical note "C", after a very short time, the one-key play key 2A is turned off.
When A is turned on again and the process of producing the second musical tone begins, the count value Δt of the note length counter 17 at that time (indicating an extremely short note length) is set to address 4 by the process of step T. Steps T2 to T8 and T are executed in the same manner as the pronunciation process for the first musical note C, and the second musical note C is pronounced and muted, and its accurate note length data (quarter note ) is written at address 6 (see Figure 8).

The same applies to the third musical tone "mi", and its explanation will be omitted.

Next, processing begins for the musical tone pads "'Mi" and 'G' that are sounded simultaneously, and when the one-key play key 2A is turned on, tone length data △t is written to address 12 as the off time of the third musical tone. (step T1), and the tone length counter 17 is reset (steps 〒,).

Then, the scale data "DOON' (Hl) is read from address 13 and sent to the code converter l to start sounding (steps T3 to T). Next, from address 15, the scale data "DOON' (Hl)
N'' (Hz) is read out, and it is determined that both are ON information, and the process proceeds to step T1° (steps T6 to Ts).Therefore, the scale data ``miON'' (
Hl ) is sent to the code converter 2 and pronounced along with the scale C. Next, the address is returned to address 14, and tone length data '0'' is written there instead of tone length data try (
Step T++ 1T12). That is, this means that it is set that the scales "do" and "mi" are musical tones that are produced simultaneously. Then, the tone length counter 17 is reset (step T+s), and the address counter is incremented by 3 to set address 17, from which scale data 1'SOON'' (referred to as Hs) is read out (step TI
4, Tt5). MJ, this means that the third musical tone of simultaneous pronunciation has been read out. Next, I(,,H,,H3 are both O
It is determined whether the information is N (or OFF) (step T
I, ), so 1-YESJ, and step T1. Proceed to.

Step TI? Then, the scale data ON is the chord conversion section 3.
The musical tones of the scale °'G' are simultaneously sounded along with the musical tones of the scales 'C' and 'E'. Then, the address is returned by 1 to address 16, and tone length data "0" is set there instead of tone length data t8 (steps T and T1).

In other words, the scales "do 1,""mi" and 'so 0 are now set to be musical tones that can be sounded simultaneously.Next, the note length counter 17 is reset again, and the address counter is incremented by +2. Address 18 is set (step T
10, T2°).

After the three musical tones of the scale C, Pami, and G are started to be sounded at the same time, when the one-key play key 2A is turned off after the length of a quarter note has elapsed, the count value of the note length counter 17 at that time ( Quarter note tone length data) is set at address 18 in place of tone length data t (step Ill).
. Next, after the tone length counter 17 is reset, the scale data "miohn"(n+>) is read from address 19 and sent to the corresponding code converter 2, so that the musical tone of the scale "mi" is muted (steps T2 to Ts). .Also, the scale data "SO OFF" (Hl) is read from address 21, and Hl, H
It is determined that both information is OFF information, and step TI
Proceed to step O (steps T6 to T8).

Therefore, the musical tone of G on the scale is muted. Then, tone length data ``'0'' is written in place of tone length data tlo at address 20, and processing is performed to indicate that the scale data ``mi'' and ``so'' are musical tones that are muted simultaneously ( Step T11,
T□2). After resetting the tone length counter 17, 23
The scale data “FaON” (Ha) is read from the address (
Steps T13-T1. ), then in step TI, the answer is "NO" and address 22 is set (step T
,).

Next, when the one-key play key 2A is turned on immediately after being turned off, extremely short tone length data △t is set at address 22 instead of tone length data tH (step 'I' is started, and from address 23, The scale data "FON" (Hl) is read and sounded (steps T2 to Ts).The scale data "FON" (Hl) is also read from address 25, and it is determined that both are ON information. Then, the process proceeds to step T1° (steps T6 to Ts).

The pronunciation process for the scale data "F" and "U" which are simultaneously produced is the same as the case of the scale data "Do", "Mi", and τSo" described above. Hereafter, steps T+o-Tti are executed.
At step T111, the scale data OFF at address 27 is read out and becomes "NO".

When the one-key play key 2A is turned off after the length of a quarter note has elapsed since the last time it was turned on, the length data of the quarter note is stored at address 26 in step T1.

is set instead of . Then, scale data "7A OFF" (Hl) is read from address 27, and the scale "F" is muted. Also, from address 29, the scale data “UOFF’ (H
7) is read and step T.

The process then proceeds to step T1o. Therefore, the scale “u” is also muted. Then, tone length data "0" is set at address 28 in place of tone length data t14, and tone length counter 17 is reset (steps Tll to T13).

Next, scale data "DO OFF" (Hl) is read from address 31, and H+1. It is determined that both H2 and Hs are OFF information, and the process proceeds to step TI7 (step T1
4-T16). Therefore, the scale C is also muted, and note length data '0'' is set at address 30, which causes the scale C,
Processing is performed to indicate that both Aa and U are musical tones to be muted at the same time. Then, the tone length counter 17 is reset,
Address 32 is also set (step Tl?~T2□
).

Next, when one-key play key 2A is turned on immediately after being turned off last time, tone length data △t is set at address 32.
Thereafter, the processing for the musical tone of the scale G is performed as described above.

After the scale and note length of the song shown in Figure 3 have been accurately input into the data storage section as explained above, when the mode switch 7 is set to PLAY (play mode) and the auto play key 4 is turned on, The song will start playing automatically. In this case, the musical scale data read from the data storage unit 13, such as “Do ON” at address 1, “Do OFF” at address 3, etc., is input to the code conversion unit 1, etc., and the musical tone is produced or muted. be exposed. Also note length data, for example the quarter note at address 2,
The value △ at address 4 is input to the note length buffer 16 and compared with the count value of the note length counter 17.

When the count value matches the tone length data inputted to the tone length buffer 16, quarter note, △, etc., the comparison circuit 15
outputs a coincidence signal C and gives it to the control unit 10, increments the address counter, and in response to this, the control unit 10
outputs a reset signal R to reset the tone length counter 17. In this way, while reading the scale data one by one, the sound generation and muting processes are automatically performed. In addition, two or more musical tones can be played simultaneously, such as the fourth musical tones "C, 'Mi,'G," and the fifth musical tones "C,""F," and "U°1" in the song in Figure 3. As shown in Figure 8, in the case of sound generation and muting, the tone length data between consecutive "ON" scale data or "OFI? +" scale data is rOJ, so simultaneous sound generation and muting processing is executed. Ru.

In addition, in the above-mentioned buoy mode, if the performer performs a one-key play while adding note lengths by himself, the address counter is incremented each time the one-key play keys 2A and 2F are turned on and off, and the scale is The data is sequentially read out and sent to the code conversion section 1.2.3, where it is generated and muted.

In this case, the sounding time and muting time of each musical tone data are controlled by the control unit 10 according to the on/off operation of the one-key play keys 2A and 2B without rewriting the sound length of each musical tone data, and the above-mentioned implementation is performed. The sound is pronounced and muted exactly as expected, allowing the performer to enjoy one-key play performance. Furthermore, the simultaneous production and muting of multiple musical tones described above are exactly the same as in the above-described embodiment.

In this embodiment, when inputting scale information into memory,
Since the musical tone of that scale is emitted, the scale information to be input can be confirmed, and erroneous input of scale information can be prevented.

〔Effect of the invention〕

As explained above, this invention determines whether ON information or OFF information of a plurality of scales have been read out in succession when reading and reproducing scale 1n information input into a memory by operating a specific key or the like. In addition, since we have provided a scale information processing method that simultaneously reproduces musical tones of multiple scales when they are consecutive, it is possible to easily reproduce multiple scales with different lengths according to the musical score. There are advantages.

Furthermore, since this invention is a processing method that reads and reproduces continuous ON or OFF information of multiple scales, even if multiple tones are sounded or muted at the same time when inputting scale information, the keys can be operated in sequence. It has the advantage of not requiring any special techniques.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an electronic musical instrument according to an embodiment of the present invention;
The figure is a circuit configuration diagram, Figure 3 is a diagram showing a musical score manually input, the fourth factor is a diagram showing a flowchart and key operation status etc. when musical tone information is input, and Figure 5 is a diagram showing preset data in section 13 of data record t11. A state diagram of the musical tone information, FIG. 6 is a diagram showing the key operation state when presetting the musical tone information, FIG. 7 is a flowchart and a diagram showing the key operation state, etc. when presetting accurate tone length data, and FIG. 8 is a diagram showing the state of the musical tone information. is a storage state diagram of the data storage unit 13, and FIG. 9 is a diagram showing key operation states.
... Keyboard, 2A12B ... One key play key -14 ... Auto play key, 7 ...
・Mode switch, 10... Control section, 11...
... Arithmetic section, 13 ... Data storage section, 14
...Buffer, 15...Comparison circuit, 1
6...Tone length buffer, 17...Tone length counter, 18-FLN 18 b 118c...
... code conversion section, 19-a, 19-b, 19-
Q...Musical tone generator, 20...Amplifier,
21...Speaker. Patent applicant Casio Computer Co., Ltd.

Claims (2)

[Claims] (1) An input means for sequentially inputting each scale of a song in the order of progression of the song, ON information of the scale input by this input means,
a storage means for storing FF information; a reading means for sequentially reading out ON information and OFF information of each scale of the plane preset in the storage means from the storage means; 3. Judgment means for judging whether OFF information is read out consecutively; and means for performing simultaneous reproduction processing of musical tones of a plurality of scales when the judgment means judges that ON information is continuous or OFF information is continuous. A musical scale information processing method characterized by comprising the following. (2) An input means for sequentially inputting each scale of a song in the order of progression of the song, ON information of the scale input by this input means, O
a storage means for storing FF information; a reading means for sequentially reading out ON information and OFF information of each scale of the above-mentioned plane preset in the storage means; A determining means for determining whether OFF information has been read out consecutively; and a reproduction processing means for simultaneously reproducing musical tones of a plurality of scales when the determining means determines that ON information is consecutive or OFF information is consecutive. and means for causing the storage means to store information indicating the timing at which the musical tones are produced or muted by the reproduction processing means.