Storage medium storing musical piece correction program and musical piece correction apparatus

摘要: A musical piece correction apparatus corrects a sounding timing (note-on timings) of sound constituting apart piece. First, the reads, from storage means, music performance data indicating timings in Next, sets plurality reference (grids) period piece, and sets, for each timing, (area) including said timing. At this point, among included period, nearest to is selected, selected corrected so as coincide with