This is yet another reason why I'm using MP3 files on stage at some gigs. All of my midi files are now setup for the discontinued Yamaha 9000 Pro and they number into the hundreds... I really wouldn't want to resequence or remix them for a new device (and then another and then another...). Also I have an opportunity to fly to some gigs this year and use rented digital pianos and I don't want to have to take my arrangers and SMF's. So I have created a complete MP3 backing track library.

I believe that one day a lot of keyboards will feature MP3 playback, and while I'm waiting I have a number of devices that can do it if the keyboard can't, including my Music Pad Pro. With an accompaniment MP3 library I can selectively replace individual MP3 files as my sound sources improve. And since I live on the coast I am very aware of hurricane season and the need to have several backup plans in case I lose gear for any reason.