Patent ID: 7420113

Claim:
A rendition style determination apparatus comprising: a supply section that supplies performance event information; a setting section that sets a separate tone pitch difference limitation range for each of a plurality of rendition styles; a detection section that, on the basis of the performance event information supplied by said supply section, detects at least two notes to be sounded in succession or in an overlapping relation to each other and detects a tone pitch difference between the detected at least two notes; an acquisition section that acquires information designating a rendition style to be imparted to the detected at least two notes; and a rendition style determination section that, on the basis of a comparison between the tone pitch difference limitation range set by said setting section and corresponding to the rendition style designated by the information acquired by said acquisition section and the tone pitch difference between the at least two notes detected by said detection section, determines applicability of the rendition style designated by the acquired information, wherein, when said rendition style determination section has determined that the designated rendition style is applicable, said rendition style determination section determines the designated rendition style as a rendition style to be imparted to the detected at least two notes, wherein, when said rendition style determination section has determined that the rendition style designated by the acquired information is non-applicable and that a predetermined default rendition style is applicable, said rendition style determination section determines the default rendition style as the rendition style to be imparted to the detected at least two notes.