In the 1920s, Carl Orff (of Carmina Burana fame) developed a method of teaching children about music that focuses on treating music just like the spoken word - starting with just a few notes and continually adding complexity as time passes. The Orff method necessitated a collection of simple, non-intimidating musical instruments to teach the foundations of western melody and harmony in a group setting - what is more well-suited for the job than drums and rudimentary keyboard percussion instruments?

The AD 1 BasisTrolley Adapter is designed to fit all diatonic soprano, alto, tenor-alto, and bass mallet instruments that have three brackets in the sides.