Yamaha Corporation

Yorihisa Yamaguchi

Takeo Shibukawa

Tokuji Hayakawa

Fujiyo Mandai

Naoya Tetsumura

Hiroyuki Kawai

Hasegawa Tsutomu

In a case where a fill-in pattern is temporarily inserted during an automatic performance, not only a main pattern to which the performance pattern should be shifted but also a main pattern which has been performed immediately before are taken into account and a fill-in pattern is automatically determined in accordance with a combination of the two main patterns. In a case where an introduction pattern is inserted at the beginning of the automatic performance, an introduction pattern is automatically determined depending upon which main pattern is performed after the introduction performance. In a case where an ending performance is inserted at the end of the automatic performance, an ending pattern is automatically determined depending upon which main pattern has been performed immediately before the ending. In a case where, during a fill-in performance, an operation for designating another fill-in performance has been made, the fill-in performance which is being performed is continued and, as to the main pattern to which the pattern should be shifted, one which is designated later is given priority. Transient performance patterns such as fill-in, introduction and ending are automatically determined in these manner and an automatic performance which is rich in variety can be realized.

Automatic performance device

An electronic musical instrument provides an automatic tonality designating function capable of automatically designating a desirable tonality based on a chord and a rhythm kind which are respectively designated. The chord is designated by simultaneously depressing plural keyboard keys, while desirable one of plural rhythm kinds which are predetermined in advance is designated by the performer. In addition, a desirable mode can be determined based on the designated chord. Based on the mode, chord and rhythm kind, an automatic accompaniment can be performed. Further, this electronic musical instrument can also provide a chord detecting apparatus capable of automatically detecting a desirable chord based on plural notes (or note names) designated by the performer. In such chord detection, an evasive note is automatically omitted from all notes designated by the performer, so that the desirable chord can be detected with accuracy.

Electronic musical instrument having an automatic tonality designating

The present invention provides an automatic musical-accompaniment sound-generating apparatus for generating various accompaniment sounds. The original accompaniment patterns stored in the apparatus are varied according to the tempo of the accompaniment being produced. The apparatus is essentially composed of an accompaniment-pattern memory, accompaniment control memory, a tempo generator, a sound generation controller, accompaniment-sound signal generating means, and a sound system. The accompaniment-pattern memory stores data sets composed of sound data. The data sets correspond to original accompaniment patterns. The sound data correspond to musical notes and sounds composing the original accompaniment pattern. The accompaniment control memory stores control data about whether or not to generate each of the musical notes and sounds in relation with the tempo at which the accompaniment sounds are produced. The tempo generator generates tempo signals. The sound generation controller is activated by tempo signals and reads the sound data and decides whether or not to transmit the sound data according to the tempo at which the accompaniment sound is being generated. The accompaniment sound signal-generating means generates accompaniment sound signals according to the sound data transmitted by the sound generation controller. The sound system emits accompaniment sounds according to the accompaniment sound signals.

Automatic musical accompaniment sound generating apparatus

An electronic musical instrument comprises a plural number of component blocks capable of being coupled mechanically and electrically in succession and each having therein musical tone elements control means and at least one of the blocks having also musical tone signal generating means. Time range or tonal range of generated musical tones are changed according to how many blocks are connected consecutively in a predetermined or a selected order. The blocks can generate a series of musical tones in a sequence corresponding to a connecting sequence when a switch arranged on the leading block is operated, and a desired musical piece can be performed by operating performance operating means of each block. The electric musical instrument also can be used as an educational toy allowing infants to learn music while amusing and is convenient for transportation since it can be easily dismembered into each block.

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Hamamatsu, Japan

Yorihisa Yamaguchi