Emmett Chapman, American guitarist, invented the Chapman Stick (died 2021)

Emmett Chapman was an American jazz musician best known as the inventor of the Chapman Stick and maker of the Chapman Stick family of instruments.

The Chapman Stick is an electric musical instrument devised by Emmett Chapman in the early 1970s. A member of the guitar family, the Chapman Stick usually has ten or twelve individually tuned strings and is used to play bass lines, melody lines, chords, or textures. Designed as a fully polyphonic chordal instrument, it can also cover several of these musical parts simultaneously.