Thank you BradMZ. That saves me hours of fruitless experimenting. I have software (Cubase) that can I can use to change tempo and adjust pitch when I am making the audio files from Midi's. Its a bit of a mess on, but that's life. Haven't tried it yet but Audacity might do the job. Anyhow, Thanks again for the assistance. Just for the record, your replies to other posts have also been of great help with getting to grips with my new keyboard.