Waltz in Am (Chopin)  Sample  Lesson Sample   (Download) This is original arrangement of this Chopin piece and it is taught completely "by ear." I rate this one as a late beginner and early intermediate because the first section is suitable for most first year students. It is only as the piece progresses that it becomes more difficult. Like always, the lesson has a full demonstration of the song followed by a detailed all-audio lesson breaking down the entire song measure-by-measure and note-by-note.