sometimes the passion behind a total ban on something just doesn't last...

[acroyear]

Daniel Barenboim - Wikipedia, the free encyclopedia:

Barenboim said he had decided to defy the taboo on Wagner when a news conference he held the previous week was interrupted by the ringing of a mobile phone to the tune of Wagner's Ride of the Valkyries. "I thought if it can be heard on the ring of a telephone, why can't it be played in a concert hall?" he said.