That sounds like something the teacher was ordered to do by an official. "Assess the amount of musical talent in your classes and turn in the results by Friday."

Keep in mind that what goes on in a classroom is not just between student and teacher. The bosses and the parents are watching all the time. If there's a music program and a few kids bellow out of tune, the community may think, "That music teacher can't teach! Don't renew her contract."

A friend of mine resigned her music-teaching job at a prestigious school because the principal called her in and told her she was going to put on another music program on such-and-such a date. My friend said, "The math teacher and the science teacher don't have to put on programs."