Thanks for the swift reply Matt and GuitarHacker. I do not have the skill needed to add intros, riffs, endings e.t.c. I want to have a band mate add those to a few BB songs. However, things change. Such as the need to change a key at home or on a gig. As a trial I have recorder the bass part in Audio, saved it as a performance track, then moved it to the bass track. Same thing for the vocal part. I move it to Melody. After setting pan, vol., reverb, e.t.c. I change the title a bit. It is saved to a separate folder on an SD card. From here I unfreeze all and try to figure out a way to cause a key change. The RealTracks and midi change no matter 1/2 step or as many as I request. On play back, the performance tracks remain unchanged. So, sending a song to a band mate or what ever by e mail is limited at best. Very little information is furnished by P.G. Music concerning this excellent feature. Maybe, just MAYBE next version.------Leon