Waltz Song Sample    Lesson Sample    by Dionisio Aguado. In this Guitar by Ear lesson you will learn "Waltz" completely "by ear." The lesson starts with a full demonstration of the song followed by a detailed lesson teaching every phrase, with correct fingering, for the entire song. Learning this way is fast and fun and you memorize the piece as you go. Be sure to check out the other level 1 classical pieces we have for the guitar!