He promised a music-composition mail art and he did it, with help from the low-tech gadget known as the dart:Second scan above is the back of the composition, with out-y dart holes. I am honored! Holes before music, holes marking the path for music, ending with Music like no other.
Oh yes, a bit not easy to play. Rhythm is one thing, and many flats are another, especially B-flat, which appears often. But B-flat has its silver linings, doesn't it?