Clearly what the OP is asking for is more Jazz Hands from Potter on the side lines and the odd tune from Annie from the East Stand.
I don't him personally but I know a few who have seen his Hamlet at half time and I'm told it's very impressive.
Fascinating, so while I have your attention can you tell everyone:
1) What was the play ?
2) Where was the theatre ?
3) What was the technical issue ?
4) Who was the performer ?
5) How did the performer overcome it ?
I presume you are a huge fan of musical theatre and I have a little empathy...