Basically, one year the music teacher said that at the end of the year, if we passed, we'd get a choice about wheter we get to stay in the music class or not next year. If we failed the class, we weren't allowed in any more.
Now, as someone who had no musical talent or ability to move my hands good enough, I picked trumpet as my instrument since it seemed easy. It was not. Long story short I didn't even bother doing more then show up, because the end result was no more music class for me