No problem - in the meantime I'll take a peek at the code when I get a moment and see if I understand how the analogue side of it is being emulated.
If I do then I can double check the values against the boards that I have access to, primarily to see if they are different across multiple boards and if they are all the same, if they match that of the emulation.
I guess that would be a good first step to see if we agree with the emulation before jumping on to whether the sound the emulation is producing should be different or not.
I think that makes sence! I've not looked at the source yet and could be way off in my understanding of what needs to be done / looked at!
PS: Thanks for the explanation on the interval! Not being overly musical that was confusing