Try this:
After using the Mixing Console to revoice the song:
1. Press the STOP button to return to the top of the track.
2. Press [Digital Recording]
3. Choose 'Song Creator' [A]
4. Tab right to the 'Channel' tab
5. Scroll down to 'Setup'
6. Choose 'Execute' [D]

Now save the song. If it is copyrighted, you will get a notification, but the process should still work. If not, please call us at 714.522.9000

Regards,

Yamaha Support