Minus One lets you silence instruments or voices in an SMF so you can play or sing them yourself. Use the following procedure to use Minus One:

1. Press and hold the MINUS ONE button.

2. Touch one of the three preset fields: MELODY, ACCOMP or DRUMS-BASS.

3. Press the EXIT button to return to the main screen.

4. Press PLAY to start the song.

5. Press the MINUS ONE button so it’s not lit to turn the MINUS ONE feature off.