It’s a tricky question to answer, because as we all know, a concert ticket is not a contract. Of course, there is an expectation that the band will come out on stage, pick up their instruments, and do something with entertainment value. If they just flat-out didn’t play, the venue would likely issue some kind of refund. But beyond that, are they required to play the hits? Are they supposed to stand a certain way, act a certain way, or give the crowd a certain kind of interaction? And does the price of the concert ticket directly reflect what kind of experience the concertgoer is about to have?
Boa discussão aqui.