Hello! My perspective, as a person of a more melancholic temperament, is that sad music in a way also heals the emotions of those of us who go through a "low". The emotion itself does not represent anything negative, but is a response that we have to certain situations, and that way we purify them better. Maybe that's why I like Radiohead so much haha.
But certainly a little cheerful music, after the stage, helps to lift the mood, and especially if we are well accompanied.
I leave this comment here and I'm also waiting for a recommendation from you :)