Electronic musical instrument having musical performance training system

An electronic musical instrument comprising:

• an automatic performance device for effecting an automatic accompaniment which sounds a plurality of consecutive beats in a music rhythm progression, said beats defining reference times for correct timing of a musical performance;
• keyboard means having keys representing respective notes and being capable of being depressed by an operator of the instrument;
• tone forming circuit means coupled to said keyboard means for producing musical tone signals corresponding to notes of the keys being depressed;
• memory means for storing performance data of a musical piece to be played in the form of note pitch data and duration data of notes constituting a progression of the musical piece;
• keyboard indicator means coupled to said memory means and responsive to each application of note pitch data read out of said memory means for visually indicating a key to be depressed on said keyboard means by an operator of the instrument;
• and
• control means coupled to said memory means for reading at least the note pitch data of said performance data out of said memory means and including means for sequentially applying the read out note pitch data corresponding to each note to said keyboard indicator means and for causing said keyboard indicator means to visually indicate to an operator a respective key determined by said note pitch data of each note at an indication time which precedes by a substantial amount of time a correct key depression timing instant at which said indicated key is to be depressed for a correct performance of the musical piece, said instant being in synchronism with the rhythm defined by said consecutive beats defined by said automatic accompaniment, said substantial amount of time being previously determined in relation to the progression of the musical piece.