Use the following procedure to layer two Tones on the RG-3F:
1. Press any two Tone buttons simultaneously so they are both lit. These two tones will both sound at the same time when you play a note.
2. Hold down one of the selected Tone buttons and use the + / - buttons to select alternate sounds from within the selected group.
1. Press any two Tone buttons simultaneously so they are both lit. These two tones will both sound at the same time when you play a note.
2. Hold down one of the selected Tone buttons and use the + / - buttons to select alternate sounds from within the selected group.