I’m not a rabbi, but I would think its not a problem for a few reasons. 1: they didn’t say anything 2: you didn’t record it professionally 3: you’re not making money off it 4: you didn’t record the whole concert or even whole songs (?)- (even if you would post it on yt)
I repeat that I’m not a rabbi, so don’t go based on what I said.
I liked the song, but didn’t go crazy over it. I’ll admit I started getting into it after listening a few times. (And then it was stuck in my head which I guess means that its a catchy tune.)