Mr Ed is correct. Under the display are 16 buttons which do different things. When playing the styles this buttons do mute any part you like, when is "mixer" mode, they select the part you wish to change sounds, volumes, pans, effects, octaves, etc. and when in smf song play mode they turn on and off any of the 16 tracks you wish to mute.


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George Kaye
Kaye's Music Scene
Reseda, California