| 摘要 |
An electronic musical instrument with an automatic accompaniment function has a plurality of registration data corresponding to an accompaniment patterns, and a registration can be selected from the plurality of registration data corresponding to the selected and designated accompaniment pattern. The registration data represents a set of data such as the tone color, tone volume, effect, and the like of musical tones, for defining a performance environment. A plurality of accompaniment patterns are prepared for each style. When an accompaniment pattern is changed, the registration is changed in correspondence with the changed accompaniment pattern. Furthermore, when an accompaniment pattern is changed between different pattern groups, the registration is changed. When an accompaniment pattern is changed in one pattern group, the registration is left unchanged. The pattern group is a group of a plurality of similar accompaniment patterns.
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