CT waterfront :-) He said he was Zulu & learned to play from his grandfather, but had invented this particular mouthpiece structure & was playing improvisations. The shaker was a plastic ball from a ballcock, filled it with 20c coins. I play Swedish & Norwegian tunes on a plastic flute which uses the same harmonic principles although the mouthpiece is constructed differently & I use 2 hands to hold the flute. There are also traditions of harmonic flutes in other countries.
