Everytime you play a piece out of it, a bach dies.
the busoni editions for bach are CRAP. Everytime you play a piece out of it, a bach dies.
Why are they crap ? Because they are full of aditions, tempo markings, dynamics and all ? Well, that's what an instructive edition is, isn't it ? If you're looking for a clean, Urtext edition, you can be sure the Busoni isn't one. But you can also be sure that you're in the wrong thread too.