Sometimes, I'll read, "(So-and-so) taught music," in a feature story or obituary. My reaction is always, "What does that mean specifically? Was this person a band director, orchestra director, or choir director? Did (s)he teach general music classes, music theory, or give lessons in a specific instrument? Did (s)he teach elementary, middle school, high school, or college students?"
Just saying that someone taught music is insufficiently vague.
