QUOTE(DrumKat @ Jul 6 2008, 06:49 PM)

I've had a go at both those pieces, and they're good fun! One way of trying to make the semiquavers straight is actually to play them in loads of different rhythms. So, play them all deliberately dotted, play them reverse dotted (scotch snap), play each note as a double and mess around with stuff like that. After that, try going back to just straight. It can work absolute wonders. It's also good when you're just trying to get used to a particularly difficult passage of music. I would imagine this technique would be more useful for alla turca than for porgy, due to the sticking in porgy already containing quite a few doubles.
I'm not entirely sure what you can do about relaxing, as I think I have that problem slightly as well. I haven't a clue whether it'd be useful but I don't know whether Alexander Technique would help?
I'm glad that you've found a way of practising, anyway.
Thank you!

and yes im glad i found a way too.
I have had an example lesson in alexander technique but can't really afford to commit to them yeh know?