I'm a concertina player and would like to be able to change the way the notes are mapped(?) to the computer keyboard. The computer keyboard would suit a 'hayden duet' system really well - and could be easier to play that way than trying to model a piano. The standard hayden layout can be seen at http://www.red-bean.com/~noel/keyboard- ... den-46.gif but would need adapting slighty. I'd be happy to work out the adaptation. Is there an easy way to change which note sounds when a computer keyboard key is pressed?