<human>: I've been asked to play the bass guitar at a school performance and being the pushover I am I said yes. I started just less than a month ago and the performance is in June, (two months time). 

I get really nervous on stage in front of people and so I really don't want to do this. 

I have a Maths exam a month before we do the performance and I also might have a saxophone exam outside of school to use as potential excuses.

I also don't like talking to someone letting them down. I actually hate talking to people.

I just need to know the best way to go about this. Should I send him, (a teacher), an email telling him that I don't want to do it? Just tell him face to face? Or just man up and do the performance. Two of my friends playing guitar in it are also thinking about dropping out because they find it boring.

But here's the kicker; several teachers are involved in this production. If I drop out I could 'anger' several teachers in several departments.

Give me a shortened version of the text
<bot>: Need a way to tell a teacher I don't want to perform in a school production with the possibility of angering several other teachers.