GigBoss is a must have for every gigging musician! You can enter lyrics and/or other notes, key, tempo and midi controller and program change information for as many songs as you like. Then you can group songs into sets in any combination. Next you group sets into shows. Then, when it comes time for the performance, you have all the info you need, and your midi gear will automatically switch to the correct program for each song. NOTE: Midi features of GigBoss require the MidiMobilizer iPad midi interface from Line 6. Even without using Midi, GigBoss makes being organized and prepared for your gig a breeze. No more paper setlists - no more lyrics written on the back of a bar napkin - no more trying to remember which keyboard patch you used for that song.