Roland Corporation

Nobuhiro Yamada

Kazuhiko Matsuoka

Kazuya Yanase

Embodiments of the present invention comprise an electronic system by which it is possible to have an accompaniment that automatically tracks the performance tempo of a performer. The system is equipped with a ROM in which a sequence of performance data that comprise a main performance composition that is to be performed by the performer is stored. The system receives input from the performer, for example, keystrokes of a keyboard, and the relative performance tempo of the performance by the performer is calculated with respect to a segment of the performance. An accompaniment is then generated by the system by comparing the detected tempo of the performance of the artist with the tempo of the reference performance that is stored in ROM. By knowing the difference in tempo between the reference piece stored in ROM and the piece as being performed by the performer, the system may then adjust the tempo of the accompaniment to match the tempo of the performance by the artist.

Electronic score tracking musical instrument

The present invention relates to a performance position retrieval system that is installed in such things as electronic musical instruments. Its object is to enable rapid and more accurate searching for a position in a musical composition that the performer etc. is currently performing. It is provided with an automatic performance means in which the performance data for the musical composition are stored and an automatic performance is carried out in accordance with that performance data and an input means in which the performer inputs the performance data for the performance and a retrieval table with which a prescribed computation is carried out for a sequence of a specified amount of performance data from the above mentioned performance data for the musical composition, demarcation is done in accordance with the computation results and the position information is stored and a retrieval means in which the above mentioned prescribed computation is carried out for a sequence of the performance data that have been input in the above mentioned input means and the performance position is retrieved based on the above mentioned retrieval table in accordance with the results of the computation.

Electronic musical instrument performance position retrieval system

A system to automatically stop an automatic performance by means of automatic performance techniques in conformance with the performance by the performer and to alleviate the stress of the performer is described herein. It has a storage means in which the performance data from a multiple number of parts are stored and an automatic performance means in which the performance data that have been stored in the above mentioned storage means are performed automatically and an input means in which optional performance data are input and a comparison means in which the performance data that have been input by the above mentioned input means and the performance data from a specified part that have been stored in the above mentioned storage means are compared and an automatic performance termination control means in which, in those cases where, as a result of the comparison by the above mentioned comparison means, a comparison result that the performance data that have been input by the above mentioned input means and the performance data from a specified part that have been stored in the above mentioned storage means are not in agreement has continued for a specified period of time or longer, the automatic performance by the above mentioned automatic performance means is terminated.

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Osaka, Japan

Nobuhiro Yamada