I had a musical performance dream last night, too! Was it my first since the big shutdown? I think it was.
There were actually two such dreams -- one before I got up to go to the bathroom in the middle of the night, and the other before I got up this morning. The first one was a weird little thing that I can't really describe, even to myself. It had to do with helping someone possibly program a keyboard or record something, and I had one line in it to speak.
The "big" one had me preparing for our opening performance of The Last Five Years, and the woman who directed when I did it nearly fifteen years ago was directing it again. The young actress seemed to be a former workmate from the 1990s. Whatever the theater was, it had just been rebuilt, I think more due to damage, but with updating involved. As I walked in for either a final dress rehearsal or for the opening itself, I found I was in a tux and that the stage was set up as for a concert performance. Oddly, this didn't become one of those panic dreams in which you haven't rehearsed or just don't know what the hell you're doing. Other details escape me, which is probably just as well.