Patent ID: 7259315

Claim:
A waveform production method comprising: a step of supplying, in accordance with order of time, a plurality of rendition style event data designating rendition style modules, the rendition style event data including content data corresponding to a rendition style event, and timing data corresponding to a time position of the rendition style event; a step of, when given rendition style event data at a given time point is to be processed in accordance with the plurality of rendition style event data supplied by said step of supplying in accordance with the order of time, obtaining other rendition style event data related to one or more events, following the given rendition style event data, in advance of a predetermined original time position of the other rendition style event data; a step of generating control data corresponding to a rendition style module designated by at least one of the given rendition style event data and the other rendition style event data obtained in advance by said step of obtaining, on the basis of the given rendition style event data at said given time point and the other rendition style event data; and a step of synthesizing, on the basis of the control data, waveform data corresponding to the -rendition style module designated by said given rendition style event data at said given time point.