Yes Michael but i don't think it is as simple as that. Ify you read the article that Pene linked to on the well temered scale, you will find that the intervals used on some tuning systems will produce slightly different interavals in terms of what we call tones and semitones depending on the key relative to the original base scale and it appears that classical comoser have used these subtle differences to effect the feel of a tune.

Jon

(who is still ignorant but trying to learn)