I'm a brass player in a UK brass band. We spend lots of time practising things:
- we practise our technique so that we can perform fast or slow phrases without stumbling;
- we practise ensemble playing so we are in tune with the other players and our articulation is in accord the others, so we all play notes the same length and the same shape;
- we practise dynamic variations so we can get louder/quieter smoothly and at the same rate as the other players;
- we practise playing at extreme ranges so we can perform high/low notes securely;
We rehearse these things (and lots of other stuff besides), individually and in ensemble, over and over again and they improve.
However - during performance, nerves kick in and these have an unwanted adverse effect.
Here's the question: is there any way, during a rehearsal, to reproduce the physiological changes that normally only occur during the performance, in order that we can rehearse strategies for dealing with those unwanted side-effects?