anyone know if its possible to get an editor so i can see the contents?
Short answer: No, it's not possible
Long answer: David Whittaker never released the editor, if there was any (I'd vote for there being a music editor for the format, but with such custom formats you never know...)
Some tricks that could be tried instead:
1. Checking out the assembly replay routines and finding out how the frequency is decoded. Dumping this information to some file with time stamp.
or
2. Recording the tune and dumping it to some audio -> notation tools, perhaps such as Intelliscore.
