GM - General MIDI	General MIDI (GM)
GM - General MIDI, GM2 - General MIDI 2	General MIDI (GM), General MIDI 2 (GM2)
GM - General MIDI, GM2 - General MIDI 2, XG - Extention to General MIDI	General MIDI (GM), General MIDI 2 (GM2), Extended General MIDI (XG)
GM - General MIDI, XG - Extention to General MIDI	General MIDI (GM), Extended General MIDI (XG)
GM2 - General MIDI 2	General MIDI 2 (GM2)
GS - General Standard	General Standard (GS)
GS - General Standard, GM - General MIDI	General Standard (GS), General MIDI (GM)
GS - General Standard, GM - General MIDI, GM2 - General MIDI 2, XG - Extention to General MIDI	General Standard (GS), General MIDI (GM), General MIDI 2 (GM2), Extended General MIDI (XG)
GS - General Standard, GM2 - General MIDI 2	General Standard (GS), General MIDI 2 (GM2)
GS - General Standard, XG - Extention to General MIDI	General Standard (GS), Extended General MIDI (XG)