Copyright with regards to concerts and recorded music is similar. they both must adhere to the 4 basic principles. Recording a concert or copying a song are both mainly in violation of rules 3 and 4: the amount of the work as well as affecting the market for the work by obtaining it for free. But since the amount is a determinant of a violation of copyright, video taping short personal segments is not against copyright laws.
Recording a concert might affect the market more than copying a music file. Concerts generally cost more than an album, and they probably have a bigger market than music alone.