The major Pentatonic scale, the most widely used melodic scale in the world, is found in the black notes of the piano keyboard. In the soprano, alto, and bass sizes, it contains all the notes to "Amazing Grace". It blends well with Hawaiian and Westminster. The size(voice) mezzo is one half octave higher than the size(voice) alto. The overall hanging length, from the top of the knot to the bottom of the windcatcher is 38". The weight is 5lbs.