ELECTRICITY MAKES MUSIC (Nov, 1934)

ELECTRICITY MAKES MUSIC
Three new musical instruments, a guitar, a violin and a clavier, recently invented by Lloyd Lear, lecturer on the physics of music at Northwestern University, Illinois, produce their music electrically. The unusual instruments have no sounding boards and the strings when struck vibrate with little sound. The vibrations are caught by electric pick-ups and converted into current. Then the impulses are converted into music.