Capable of making more than one tone family (also called a tone color or tone timbre) at the same time, i.e., a device which can respond on multiple MIDI channels at once. A typical multitimbral tone generator can play, for example, the brass, piano, and violin parts all at once. GM requires 16-part multitimbral synthesis capability. Each multitimbral part can play polyphonically, that is play chords, up to the polyphonic voice limit of the module.