| 摘要 |
PROBLEM TO BE SOLVED: To lessen the labor for forming accompaniment pattern data and to save the memory region of a memory by controlling the musical tone elements, such as pitch and sound volume, of the accompaniment pattern data with constituting tone units. SOLUTION: The note number of a note event is subjected to pitch conversion in accordance with the chord route and code type of registers ROOT, TYPE (S84). Next, the attribute of the tone name of the note number after the pitch conversion is decided by referencing the attribute table relating to the chord kinds indicated by the chord type in the register TYPE (S85). The control contents relating to this attribute is determined by referencing the open harmony table assigned by the 'open harmony table number' relating to the track TRi in a style data (S86). Next, which is the control content determined is judged (S87). As a result, the accompaniment playing of various variations based on the same kind of the accompaniment pattern data is made possible. |
