Would IMSLP be interested in such scores? Or do we focus entirely on 'traditional' western notation? Or 'traditional' western notation and after? (so a contemporary piece with non-standard notation would still be acceptable, while a medieval piece in non-standard notation wouldn't).
I think it would make a great addition, although there is lots and lots and lots of music which is in the older notations, and which has also been transcribed in modern notation.
P.S. I could also take a photograph of the Seikilos epitaph, as I will be in Copenhagen in December! That could be the oldest piece of music on IMSLP
