Sanford and Judy Jones, Youth Opera International, Inc. This DVD shows teachers how to structure Movement Exercises, Music Appreciation Activities, Singing Lessons, The Montessori Bell Lessons and Sensorial Through Notation. The DVD is geared toward children ages 3, 4 and 5 and is divided into 3 lessons – Jumping, Even and Uneven Rhythms and a Small Group Lesson on the Montessori Bells.