I am having a problem saving a midi file in a new key so where better to write for help than here!! I downloaded a midi file for the Can Can and changed the key following the instructions in Alec's book, so that Ross can play his version of the music with some of the midi file backing. When I save the changed file as a midi file it changes the backing to piano rather than the original orchestral backing. I have saved it as a Technics file and this works, but Ross' music teacher has a PR and we would like to play it to her at his music lesson. She said that she does this all the time on her PR and it works, but despite several attempts by us both, we cannot get it to work on the 7000. Any advice you can give us would be greatly appreciated.