Standard MIDI files (SMFs) loaded in the flash memory must have tracks designated for the right and/or left part in order for the lesson feature to work for these parts.
1) Press [SONG]
2) Call up the song to be used in lesson mode.
3) Press [FUNCTION]
4) Press Down arrows underneath the data dial until 'LEFT PART or RIGHT PART' is diplayed. At this point a track must be assigned to both sides for the lesson feature.
NOTE: Song files loaded into the memory must be in FILE FORMAT '0'. in order to assign lesson parts.