Sorry I seem to be hogging the airwaves a bit at the moment...
Brief recap: I have dug out an old clarinet and started playing it again, just as a beginner. The clarinet in question is an old plastic Selmer that someone gave to my wife ages ago - it has not been played for at least 15 years; it's not the clarinet I was using when I was learning. At the very least it needs a good service, and rather than muck about with it I have bought a basic Buffet Prodige to be going on with.
I am playing it with a Van Doren mouthpiece that I had left over from last time. It seems easier than the one that came with the Buffet, though I'd have thought it would be the other way around. I've also got some Legere reeds of varying strengths, mostly from the past. I bought some new Rico Plasticover reeds, mainly because they were available by mail order (I have no access to a shop) but they are pretty horrible.
Out of interest, I tried the Buffet out on a tuning app, and was surprised at how flat it was. I remember the teacher I had last time got me to buy a 2nd barrel because he said Legere reeds (of which he was not a big fan) tended to play a bit flat, and that sorted the problem. A quick internet search returned the "fact" that a standard barrel is 66mm. The one on the Buffet is 64mm. I checked the one on the Selmer and that is only 61mm; using it does make the clarinet almost in tune.
My actual questions are:
- how long is a standard barrel?
- how much might embouchure issues contribute to intonation? Using the shorter barrel I can get the tuning up to the correct pitch if I blow a bit harder, but I don't remember having to do that in the past.