Automatic performance device utilizing data having various word lengths

An automatic musical performance device comprising:

• storing means for storing first note name data represented by digital words whose word lengths are different in accordance with frequency in use of each note name in a music to be performed;
• read out means for reading out said first note name data from said storing means;
• conversion means for converting said first note name data from said storing means to second note name data, said second note name data being represented by digital words whose word lengths are independent of said frequency in use of each note name;
• and
• producing means for producing at least one of a musical tone signal and a key designating signal in accordance with said second note name data fed from said conversion means, said key designating signal being a signal which designates a key to be depressed in a keyboard.

An automatic musical performance device comprising:

• storing means for storing note name data corresponding to notes in a music to be performed and first note length data corresponding to said notes and represented by digital words whose word lengths are different in accordance with frequency in use of each note length in said music;
• read out means for reading out said note name data and said first note length data;
• conversion means for converting said first note length data read out from said storing means to second note length data, said second note length data being represented by digital words whose word lengths are independent of said frequency in use of each note length;
• and
• producing means for producing at least one of a musical tone signal and a key designating signal in accordance with said note name data read out from said storing means and said second note length data fed from said conversion means, said key designating signal being a signal which designates a key to be depressed in a keyboard.