Sorry I never got back to you, always busy with new recording projects and I moon light, well, daylight as a cat and dog sitter/dog walker. I record the tracks multitracking with logic pro x then video tape me miming to the music and splice it onto the audio using Vegas Pro and upload to Youtube. I also Skype, but duetting on Skype doesn’t seem to work too well because of the lag, or maybe that is because internet speed in Australia is really really slow.
Here is a little something I am working on at the moment. BTW I have just picked up a set of 415 pitched recorders, so expect Bach’s Art of fugue to be re-recorded!