Patent ID: 7365262

Claim:
An electronic musical apparatus comprising: a performance data storing portion that stores performance data associated with each of plural music pieces and that stores tone range restriction data representing a sound generable range of a tone as associated with each piece of performance data; a transposition amount inputting portion that inputs a transposition amount; a transposing portion that changes the selected performance data, among plural pieces of performance data stored in the performance data storing portion, in accordance with the inputted transposition amount for transposing all of or a part of the music piece, which corresponds to the selected performance data, by the inputted transposition amount; and a transposition amount changing portion that, in case where a part of a pitch represented by the performance data that is changed by the transposing portion is outside the sound generable range indicated by the tone range restriction data corresponding to the changed performance data, changes the transposition amount, by the transposing portion, of all of or a part of the music piece including at least a note corresponding to the part of the pitch.