Bill Karzas replies to me about letter-names: >I suppose it depends on what language you speak. The point had occurred to me. My assumption - quite possibly incorrect - was that things could be traced back to the Greek alphabet. Perhaps the best solution (although not remotely practical, and I don't for a moment suppose that the world's musicians are about to change the system) would be to use a sequence of names that was easily memorable but bore no relation to any other common sequence like the alphabet, or numbers, or days of the week etc.. Ian Crisp [log in to unmask]