Chinci Digneous Clapper! (chin-chi, dig-knee-ous, clapper)
music instrument
Castanets
The clapper of a bell is that part of the instrument that swings and strikes the main body of the bell. It is the striking of the clapper on the body of the bell that causes it to sound, or ring.
The Harmonium was invented in 1842 in Paris by Alexadre Francios Debain.
clarinet
carillon
In 13th Century AD, Amir Khusro, the Chief Councillor of Allauddin Khilzi invented Tabla
most ancient cultures had some kind of string instrument in their traditional music
the percussion instrument was invented in the 5000bc
Apollo did not invent a instrument, the lyre was given to him by wily Hermes. He loved music itself and was it's patron and the wild Muses are sometimes said to be tamed by him.
The clap sensor, or the Clapper, was invented by Joseph Enterprises in San Francisco. It is a sound activated electrical switch.
The guitar was invented simply to be a musical instrument (what would life be without music). It is like saying why was a television invented, you don't need it but it would be good to have.