Mozart Clarinet Concerto

QUOTE(ChrisC @ Nov 5 2008, 10:43 AM)

I suspect that for a diploma exam performance, an A clarinet would be expected, but for any exams below that level Bb would be fine.
It might be expected, but it's perfectly acceptable to perform it on a Bb for any AB diploma exam. There are suggested editions for both Bb and A instruments.
QUOTE(ChrisC @ Nov 5 2008, 10:43 AM)

I think an A clarinet does sound slightly different (better in my opinion). Mind you, these days a lot of performances of the Mozart are on the (reconstructed) basset clarinet, which does sound right.
Yes, being that bit bigger, the A is that bit more mellow. Basset clarinets go down to low C, and there are so many passages which seem to make more sense if you bear this in mind - using that extra third at the bottom avoids several leaps of a seventh, some of which don't sound as Mozartian as a straight run (if that makes sense!).
Mind you, the extra keywork on a basset clarinet makes me go

- and that's just looking at one!