...you may be thinking “So, you spent 5 hours not paying attention to the show?” but somehow a good music performance just gets me in that zone. One of the most important things that I worked out during my thesis research was done during Phantom of the Opera. And I loved Phantom.
I don't see a problem with this at all. I do the same thing, at musical performances, at plays, watching movies, reading books, etc. I don't tend to solve entire problems as much as get inspired to consider new problems or new approaches to a problem that I will complete later. This is because I get pulled back into whatever art I'm consuming at the moment, unless it really sucks. And then I will flit from problem to problem, including working on my grocery shopping list.
Bonus points to the first person who figures out the title of the post.