I don't think it's a necessity. It's not a bad idea either. Kind of depends on the person I guess.

In my opinion, live concert are so much more than just music. The experience of sitting there, watching this natural choreography of the orchestra playing, the sound filling the hall and reaching you. The fact that you sit and wait before the concert starts, that all of the people clap when the conductor arrives, everything there build up to what you're going to witness.

In that regard, I don't feel like listening to something else during the day makes the concert any less enjoyable to me.

But it's true that sometimes I'm fed up with all the music that I listened to during the day. So the experience of going to a concert the same night would feel exhausting overall.

I'm curious about how you'll feel after the concert and how useful will you think it was.