To change the type of track, (Tone, Drum, Drum+Comp, Looper), you will need to delete the track and then create a new track:
1. In the home screen, press the cursor [∧] button several times to select the entire track.
2. Use the cursor [<] [>] buttons to select the track that you want to change.
3. Turn the [C4] knob to select “DELETE,” and then press the [C4] knob. A confirmation message appears.
4. Use the cursor [<] [>] buttons to select “OK,” and then press the [ENTER] button. The track is deleted. If you decide to cancel, use the cursor [<] [>] buttons to select “CANCEL,” and then press the [ENTER] button.
5. With the track that you want to delete selected, press the [ENTER] button. The TRACK TYPE SELECT screen appears.
6. Use the cursor [<] [>] buttons to select the type, and then press the [ENTER] button. The track is created, and you return to the home screen.
For more information please consult the Reference Manual available here: