What party is customarily responsible for licensing performance rights for music used at a concert?

Bach's Well-Tempered Clavier demonstrates the viability of which tuning system?

a) equal temperament b) just intonation c) mean-tone temperament d) Pythagorean intonation

A boys' choir includes only young boys whose voices have not yet changed and who sing in the soprano and alto range.

Answer the following statement true (T) or false (F)