JPH0320795A - Electronic keyboard musical instrument - Google Patents

Abstract

PURPOSE:To enable diverse, high-level performance by providing a 2nd keyboard and generating a chord consisting of specific sounds specified on the 2nd keyboard. CONSTITUTION:Sounds constituting a chord specified according to a root sound specified on a 1st keyboard 3 and the kind of the chord specified with a code specification switch 4 are arrayed on the 2nd keyboard 5 consisting of groups of four keys, i.e. three white keys 1 - 3 and one black key 4, and when the 2nd keyboard 5 is operated, arrayed sounds are generated in combination with the code specification switch 4. Further, an array variation switch 6, an output selection switch 7, a code lock switch 8, a switch 9 for original code generation, a sound length selection switch 10, and a code change switch 11 are operated to enable the diverse, high-level performance matching the sense and intention of a player through the manual operation of the player.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is an electronic 1! that generates sound using an electronic device and an IP board. Regarding board instruments.

[Conventional technology]

Conventionally, sounds of various musical instruments are generated using electronic devices, etc.
So-called electronic keyboard instruments are known. Furthermore, so-called automatic chord instruments, which automatically generate specified chords using microcomputers, have recently come into use, and the functions of electronic keyboard instruments are increasing.

[Problems to be Solved by the Invention] However, in the automatic chord instruments of the prior art described above, specified chords are automatically generated in a predetermined pattern, and are automatically generated at the pace of a microcomputer rather than the performer. This creates a gap between the performer's feelings and thoughts, and there are only a few types of chords that can be specified.
This has the problem that it is not possible to freely perform sophisticated and diverse performances of musical instruments, which is rather inconvenient and dissatisfying for experienced players in particular.

[Means for Solving the Problems] That is, an object of the present invention is to provide a second keyboard in addition to a first keyboard that emits a sound determined for each key, and to [Function] The electronic keyboard instrument of the present invention is achieved by an electronic keyboard instrument comprising a control means for arranging a chord consisting of a predetermined plurality of notes, and a means for generating the chord determined by the control means. 1 of 1! By playing the melody on the keyboard and hitting the second keyboard,
By generating a chord consisting of a specified plurality of notes, the performer can manually perform a wide variety of sophisticated performances that match the sense and intention of the performer.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First, in Figure 1, on the upper left side of the electronic IIm instrument body l, there are switches and volume controls for controlling the tone, envelope, etc., including the power switch, just like in general electronic organs and synthesizers. This is the control section 2. The first 1! provided at the center left side of this electronic keyboard instrument main body l! A keyboard 3, a code designation switch 4 provided at the bottom thereof, a second keyboard 5 provided at the lower right side of the main body 1, and a group of various switches provided above the second key vi5. It consists of Of the switch group, switch 6 is an arrangement change switch used to change the arrangement of the second keyboard 5, and switch 7 is an output for selecting whether to use the keyboard instrument only as a chord instrument. It is a selection switch. In addition, the switch 8 is a so-called code lock to hold a certain chord under certain conditions.
Switch 9 is a switch that allows the performer to play the chord (
The switch 10 is a tone length selection switch, and the switch 1l is a chord weirdo switch for incorporating a chord that is not in the chord designation switch 4 into the chord designation switch 4. Switch I2 is a switch for creating an original chord. is an external memory for storing the original code. The output selection switch 7 is
When you press the first keyboard 3 with "On", the sound will be generated as is, and if you press the 20a keyboard 5 at this time, the sounds arranged in combination with the chord designation switch 4 will be generated there. . Also, when this output selection switch 7 is "off", the first! l! No sound is generated even when the keyboard 3 is pressed, and only when the second keyboard 5 is pressed, a sound is generated in combination with the chord designation switch 4.

As shown in FIG. 1, the first keyboard 3 has white keys and black keys arranged similarly to the keyboard of a general electronic keyboard instrument such as an electronic organ. When playing only 11613, white 1!8 "C" is the note name "Ha".

Next, the code designation switch 4 in FIG. 1 is arranged with 11 code designation switches as shown in FIG. By pressing a switch, you can specify a chord. In Figure 2, code designation switch 1 represents "6 (six)", code designation switch 2 represents "rmaj7 ()jar●seventh)", and chord designation switch 3 represents "7-5"7 (1
) 5)” (Seventh●Flat●Five)”, the chord specification switch 4 is “7+5”7aug” (seventh e oghiement)”, the chord specification switch 5 is “7 (seventh)”, the chord specification switch 6 is “m
7 (minor ●seventh)'', the chord specifying switch 7 is r7sus4 (seventh ●susfour)'', and the chord specifying switch 8 is "m6 (minor ●sixth)"
”, the chord designation switch 9 is rm maj7 (minor ● major ● seventh)”, the chord designation switch 10 is rm7-5 (minor ● flat ● five), the chord specification switch 11 is rdim7 (diminutshu ● septu) )” is shown. In addition, in FIG. 1, the chord designation switch 4 is arranged in two sets in one octave of the first affi 3, and in the above embodiment, five sets of chord designation switches are arranged, and can be easily accessed from any position of the first ilfi 3. Although it is possible to input to the chord designation switch, it is not necessarily limited to this configuration, for example, only one set may be arranged in one octave of the first key g13, and the chord designation switch can also be input. 10 This function may be added to the aSS itself.

Then, according to the root note specified by the first keyboard 3 and the type of chord specified by the chord designation switch 4, a plurality of tones constituting the specified chord are played by a second Il[5], which will be explained below. Arrange on top. For example, if you press the key 8 of the first keyboard 3 with the root note "C", and press the chord designation switch 4 in the second figure,
If you press , the chord "C7 (C7th)" will be selected.

On the other hand, as shown in FIG. The four wrinkles of black 1!4 form a set, and in this case, these four sets of keys plus one 1117, for a total of 17 keys, are arranged horizontally, and the chords (chords) are arranged horizontally. ) It constitutes an M keyboard for performance, on which chords determined by the combination of the first keyboard 3 and the chord designation switch 4 are arranged.

FIG. 3 shows a block diagram of the electric circuit of the control section of the electronic keyboard instrument. That is, the first decorative panel 3, the hood designation switch 4, the second 11 panel 5, the arrangement change switch 6, the output selection switch 7, the code lock switch 8,
Original●Chord creation switch 9, tone length selection switch IO, chord weirdo switch 1l are connected via the first interface 100 to central●processing●Ebut (CPU) 101, read●only●memory (ROM) 102, random● Access●Memory (R
AM) 103 and an external memory l2. This micro●
The combination is connected to an electronic organ (synthesizer) dedicated circuit 105 via a second interface 104, and further connected to a speaker 106 that generates audio output.

The operations described above will now be described in accordance with the flowchart of FIG.

In FIG. 4, a start 200 is followed by a step 20.
1, the output selection switch 7 is "on" and it is determined whether the first keyboard 3 is pressed. by this,
If the output selection switch 7 is "on" and the first aSS is pressed ("Yes"), the process moves to step 202, and the first key 3 that is being pressed is
The output signal is sent to the second interface 104, and the sound is output via the electronic organ (synthesizer) dedicated circuit 105.

This means that when the output selection switch 7 is "on", the electronic I! This means that a board instrument has the same functions as a regular electronic organ.

Next, if the output selection switch 7 is "off"("No") in step 201, no sound will be output even if the 111th board is pressed.

Further, the process moves to step 203, and it is determined whether or not a new code designation switch 4 of FIG. 1 has been pressed. (
Even if the previously pressed code designation switch 4 is released, its address ● number remains unchanged.

) Then, if the new chord designation switch 4 is pressed (“Yes”), in step 204, this is converted into the address ● number of the chord corresponding to the newly pressed chord designation switch. Remember (store). At this time, the sound corresponding to the chord is represented by a 4-digit number and stored in the ROM as shown below.
It is written in IO2, and it is as follows: =0101 "Fa # (Sol)) J = 0110 "So J = 0111 "So # (Lat))" J = 1000 "La J = 1001 "La # (Sil))" = 1010 "Si J = 101 It looks like 1.

The root note is always "C", and for example, if you press 6 of the chord designation switch in Figure 2, "minor 7" m7
” (Minor ● Sept)”, that is, “Do J = OO00 “Re # (Mi i J = 0011” “So J = 0111 “Ra # (Sil)) J = 1010”.

Following the conversion of the address of the chord into a number in step 204, it is determined in step 205 whether or not the first M board 3 has been pressed. As a result, the first key a3 is newly pressed (“Yes”)
), (the value of the root note of the previously pressed key on the first keyboard 3 is held as it is even if you release your finger),
In step 206, this is replaced with the numerical value of the newly pressed key (root note) and stored. Similarly, in the case of (“No”) in step 205, in step 207, the second No. 1! The tones to be arranged on the keyboard 5 are calculated, and the results are written to a predetermined address in the RAM 103 of the microcomputer so that they can be read out by the second keyboard 5.

Here, in step 206, the newly pressed 1! (
When replacing the root note) with a number, the number is 7 digits,
It starts with rooooo01J.

This value corresponds to the pitch name "ha", and increases by l for each semitone higher.

Note that there is no sound when ro000000J. Specifically, number 1 in Figure 1! If you press key 8 “C” on board 3,
The pitch name of the root note of key l of the second keyboard 5 is "ha", and its value is r0011001J. Also,! l20 "do"
If you press , the note will be one octave higher than the note name “Ha”.
, and its value is roloo101J.

Then, the calculation in step 207 is to read out from that address the numerical value that was converted into the address of the chord (chord) corresponding to the newly pressed chord designation switch in step 203 and stored. , and the numerical value of the key (root note) newly pressed in step 206. For example, in the above example, if you press the code designation switch 6 in Figure 2,
Minor 7 “m7” (minor ● seventh)” is specified, while the first M! ! 3 white i! If you press 12 and make “mi” the root note, this note is expressed as ro011101J, and the four chords (chord) of “minor 7 “m7” (minor ● sepence) are “do J = 0000”. ＃(mil))J=OO11 ``SoJ=0111 ``RA#(shiI))J=1010'', so the calculation is as follows.

Second 1! For key l of board 5, 0000+0011101=00111011!2, 0011+OO11101=0100000 For key 3, Of 1 1+001 1 101=0100100 And for 1!4, 1010+001 1 101=01001 1 1These in the ceremony , r0011101J is "mi" and the pitch name is "ho", ro100000J! ! Note name with “G”
ro100100J uses ``shi'' to represent the pitch name ``ro,'' and r0100111'' uses ``re'' to represent the pitch name ``two.'' Based on these calculated values, the tones to be arranged in 4 of the 17 keys of the second keyboard 5 are determined, but the tones to be arranged in the other keys are further determined as follows. It is determined by calculations such as.

! For l5, 1100+OOl1101=0101001 For il6, 1 100+0100000=0101 For 100 key 7, 1100+0100100=0110000 And t
For a8, 1100+0100111=0110011. Here, adding rlloOJ represents l octave high ~ 1 note, which means that! 1! 5-8 are above! ! This shows that each of the notes 1 to 4 is one octave higher. Furthermore, the second 1! Board 5 1!9
~For 12, see! ! i! Enter 1 again in the numbers of keys 5-8
Add octave "1100", and for 1113 to 16, add one octave "1" to the numbers of previous keys 9 to 12.
Add 100J, and finally for 1117, add 813 above.
It is calculated by adding one octave "ll00" to the value. As a result,! ! 9-l2 are chords two octaves higher than the chords Il1-4, mia-16 are chords three octaves higher than the chords Il1-4, and l1!17 is the key l.
This results in an arrangement of four octave higher notes. Also, as a result, if you hit the keys including the black keys, it will be rEm7 (Minor ● Sept), and if you hit the keys excluding the black keys, it will be rEm7.
(minor). These calculated values are then written into the RAM 103 of the microcomputer 5 shown in FIG.

Next, in step 203, it is determined that the new code designation button 4 in FIG. 1 has not been pressed ("No").
If so, the process moves to step 208, and it is determined whether the code lock switch indicated by reference numeral 8 in FIG. 1 is turned on. As a result, r on' (
If the answer is "Yes", the process moves to step 210 (this means that the code lock switch is on), and if the new code designation switch 203 is not pressed, the second key in front of it is pressed. (meaning that the chord arranged in m5 will not change), if the chord ● lock ● switch is not turned on (“No”), the process moves to step 209, and the 10th board s is pressed anew. It is determined in the same manner as in step 205 whether or not it is. As a result, the new first! If ll1t3 is pressed (“Yes”), step 2 above
Move to 06. On the other hand, if the first keyboard 3 is not pressed ("No"), the process further advances to the next step 210.

In step 210, the tone length selection switch IO is turned on.
(“Yes”), move to step 211, read out the pressed second 11!5 value, and output it only when the wrinkle of the first peach plate 3 is pressed. A signal is sent to the second interface 104. In other words, the keyboard 3 in Figure 1 and the second 1! Outputs only when both keys of ffl5 are pressed.

Meanwhile, in step 210, the tone length selection switch 10
If it is determined that 111!15 is not pressed (“No”), the process moves to step 212, and the second 111!
, and sends the output signal to the second interface 104.

After steps 211 and 2l2 are completed, the process returns to step 201.

Although not shown in the above description of the operation, the arrangement change switch 6 is a switch used to change the arrangement of the second keyboard 5, and is composed of six switches. Other than one of these arrangement change switches 6 (
One is the switch to prevent it from being undone), the second wrinkle board 5,
In other words, it rearranges the chords arranged on the chord playing keyboard. This arrangement change switch 6 allows the second I! By rearranging the order of the chords arranged in ffl5, for example, when playing the so-called glissando, which is played by stroking the fingers from left to right, you can uniformly play from low notes to high notes, or from high notes to low to 1 note. It not only allows for advanced playing techniques that were previously impossible.

[Effects of the Invention] As is clear from the above explanation, the present invention allows even beginners to easily play chords, and even in the same chord, the pitch, order, length, etc. of the notes can be adjusted according to the player's will. It is possible to provide an electronic playboard instrument that exhibits the excellent effect of allowing players to play more freely and that even experienced players are satisfied with.

[Brief explanation of drawings]

FIG. 1 shows an electronic i! which is an embodiment of the present invention. FIG. 2 is a plan view showing details of the hood designation switch shown in FIG. 1; FIG. 3 is an electric circuit diagram showing the control section of the electronic keyboard instrument shown in FIG. 1; FIG. , and fn4
This figure is a flowchart for explaining the operation of FIG. 3.

Claims (1)

[Claims] A control means for arranging a chord consisting of a predetermined plurality of tones on the keys of the second keyboard, comprising a second keyboard in addition to a first keyboard that emits a predetermined sound for each key; An electronic keyboard instrument comprising means for generating determined chords.