JPS60235198A - Electronic musical instrument - 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] Industrial applications The present invention relates to an electronic musical instrument.

Conventional configurations and their problems In recent years, for example, an automatic bass performance device 11. It is starting to become more versatile in terms of tone and rhythm. An automatic bass performance system will be described below as an example of a conventional electronic musical instrument.

Figure 2 is a configuration diagram of a conventional automatic bass performance device, (1)
is the keyboard, (2) is the rhythm pattern generator, and (3) is the external ROM.
4) is a bass musical tone (No. 72 generating circuit), (5) a J-wave tone generator, (6) is an amplifier, and (7) is a speaker.The bass musical tone signal generating circuit (4) is a hood from the keyboard (1). Name data and rhythm pattern generation Hp (Incorporates rhythm pattern data of bass performance n4 from 2+ and scale pattern data (3) when playing bass, generates bass musical note A, and generates η' color. (5) Automatic bass performance is performed by driving fP.

Figure 1 shows one example of each data, Ri'+', at the opening of the park,
The chord name data that comes from the keyboard (]), the rhythm pattern data that comes from the rhythm pattern generator (2), and the scale pattern data that comes from the evening F section ROM are all old. lf'I is shown.

Note that the numbers in the scale pattern data [ζ] indicate the pitch counted from the root note of the chord.

However, in such a conventional (W configuration), the sounds gH,
There is only one way for t7 pattern arta))
Gome, the bass musical tone signal becomes monotonous, and at the same time there is a large scale shift when transposing from one chord to the next.
, which had the problem that the flow of the scale became unnatural.

In Fig. 3 (13), rhythm pattern data and scale pattern data are given as shown in Fig. 3 (A), and the chord name data is C7 in the first measure and Dm7 in the second measure.
This figure shows the output signal from the bass music tone generation circuit (4) when the following changes. Looking at the output signal shown on the instrument in Figure 3 (B), when the chord name data changes from C7 to Dm7 at the change of bars, the last note (d) of the first measure changes to the first note of the second measure. When moving to (D), it has an interval of a perfect seventh.

Kneading sounds very unnatural and mechanical.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and an object of the present invention is to provide an electronic musical instrument that can eliminate monotony of performance and smooth the flow of musical tones during chord transposition.

Structure of the Invention In order to achieve the ten UF objectives, the electronic musical instrument of the present invention includes: a storage device for storing musical scale pattern data;
F. Pattern judgment that selects the optimal one out of a plurality of scale pattern data from the device ffi that uses the previous station based on the key data from the keyboard device and the rhythm pattern data from the rhythm pattern generation device of the previous station. Is it configured with a circuit? , m things.

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

□□□4 [j6 in one embodiment of the present invention? ■This is a diagram of the automatic bass performance system as an electronic musical instrument, where (8) is the keyboard, (9) is the rhythm pattern generator, and 00 is the external RO.
The first scale pattern data stored in M, 09 is the external ROI', and the second scale pattern data stored in 1) i-
The inputter q2 is the third
Scale pattern data of 0. Moat is a base pattern judgment circuit, 00 is a tone generator, (Io is an amplifier, and OQ is a speaker.

Next, the operation will be explained. Base pattern judgment circuit 01 l
et, take in the chord name data from the keyboard (8) and the rhythm pakun data from the rhythm pakun generator r9) during bass performance, and at the same time take in the first scale pattern data O1 or the second scale pattern data 01). Or the third
Automatically determines and takes in either 0 or 1 of the uM pattern data, generates a musical tone signal, and performs automatic bass performance.

Regarding the 'QI-1 work, which determines which of the first scale pattern data 0 (1 and the second scale pattern data 01) and the third scale pattern data q2 should be taken in, Figure 5 and This will be explained with reference to the period 6.

Here, for example, the first measure is C7 and the second measure is Dm7.

■ When starting the bass performance, enter the first scale pattern 00 (button 5).

■ As shown in FIG. 5 (5), when the first scale pattern data (l() and second scale pattern data 01) and third scale pattern data are given, the first measure When considering the connection between and the second measure, Figure 6 (B
) (C) (D) Three scale patterns are possible.

■ Of the three scale patterns mentioned above, the interval between the last note of the first measure and the first note of the second measure is as shown in Figure 6 (A), and as shown in Figure 6A. , it can be seen that the interval between a and Z has the least change in pitch at the change of measures. This judgment is carried out by the base pattern judgment circuit U.
is carried out, and the 1ζ base pattern judgment circuit θa is the eighth
A musical tone signal is generated by taking in the scale pattern data /+ (+2), and automatic bass performance is performed.

■ If there are multiple pitches with the same pitch, some kind of priority should be given.

In this way, according to this embodiment, a plurality of (in this embodiment, 3
f) scale pattern data oc:~(6) as external RO
Since we have installed a base pattern circuit that automatically selects the H-R pattern data from among the several traces of M i%L' pa scene data when the chord name data changes, It eliminates the monotony of bass automatic M'J and allows you to play 'p6' with natural and smooth pitch movement.

Note that in the above embodiment, the first scale pattern data 0
1 is described as one type, but the first to third scale pattern data 00 to 02 are independently provided for each rhythm pattern data and each chord type.

In addition, in the Doi example, the scale pattern data is the first
There are three types of scale pattern data: OQ, Silu 2 scale pattern data 01), and third scale pattern αa, but the number of scale pattern data is 2 or more and less than the number of constituent notes of the chord. If there is one, it may be of any number of types.

In addition, in the above embodiment, an automatic bass performance device will be explained as an example, but it is not limited to this, but other electronic musical instruments,
For example, it can be applied to automatic performance devices such as obbligato and arpeggio.

Furthermore, it can be applied not only to automatic performance of a single note, but also to similar automatic performance of multiple notes (for example, auto chord backing, etc.).

EFFECTS OF THE INVENTION As described above, according to the present invention, a plurality of scale pattern data are received and a pattern judgment circuit is used to determine the pitch pattern.
Since the optimum sound pattern data is selected from the data and the rhythm pattern generator, natural, smooth and varied automatic performance can be performed.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of data in a conventional automatic bass performance device, and Fig. 2 shows the configuration of the conventional automatic bass performance device.
2;", 1, 31. 4 is an explanatory diagram of the operation of the automatic bass playing device, and FIG. , 5th
Figure 3 and No. 6M are explanatory diagrams of the operation of the LDP μ5 instrument based on the same model. (8)...Keyboard, (9)...Rhythm pattern generator, OQ/0. First scale pattern data, 01)...
9) 2nd scale pattern data, (l...3rd scale pattern data, α trend...Base pattern judgment circuit representative Morimoto Tsuyoshi, Hiroshi Figure 5 (A> (B) Figure IJ5V σ J J −/ σ j

Claims (1)

[Claims] 1. A keyboard device for performance, a rhythm pattern generation device that generates rhythm patterns, an R storage device that stores a plurality of scale pattern data for performance or accompaniment, and key data from the keyboard device and the rhythm. An electronic musical instrument comprising: a pattern determination circuit that selects an optimal one of a plurality of scale pattern data from the storage device based on rhythm pattern data from a pattern generator.