Electronic musical instrument with synchronized control on generation of musical tones

An electronic musical instrument, having an automatic performance function, comprising:

• reading means for reading out a plurality of tone-generation data from memory means;
• distinguishing means for distinguishing specific tone-generation data, representative of musical tones which should be simultaneously generated, from the plurality of tone-generation data which are read by the reading means;
• and
• means for providing indicator information, which indicates existence of the specific tone-generation data which are distinguished from the plurality of tone-generation data, so that the specific tone-generation data are transmitted together with the indicator information,
• whereby the musical tones of the specific tone-generation data are generated simultaneously.

An electronic musical instrument comprising:

• means for providing sequence data representative of a sequence of musical tones to be generated;
• distinguishing means for distinguishing specific data, representative of musical tones which should be generated simultaneously, from the sequence data;
• indicator providing means for providing indicator data when the specific data are distinguished by the distinguishing means;
• transmitting means for transmitting the specific data together with the indicator data;
• and
• tone-generation means for simultaneously generating the musical tones based on the specific data upon receipt of the indicator data.

An electronic musical instrument comprising:

• sequencer means for providing automatic performance data in a MIDI-standard form, wherein the automatic performance data contain a plurality of MIDI data and indicator data;
• mode detecting means for detecting a sync-tone-generation mode based on the indicator data;
• determining means for determining a sync-tone-generation timing which comes after a duration of the sync-tone-generation mode;
• and
• sync-tone-generation means for generating musical tones in a synchronized manner, represented by specific MIDI data which correspond to the sync-tone-generation mode, at the sync-tone-generation timing.