Most of the time I have a workable range up to about D above the staff. This is fine in ensemble work and practising but if it comes to playing a solo or even just in my lesson I can feel myself tense up and my range is limited to about an A above the staff. If I do get higher the sound is often strangled and not as free as I know I can play. My teacher has just told me to relax which is all well and good but HOW DO I DO IT?! I seriously have no idea.