Have you heard of Cymatics? You may actually be surprised...

CYMATICS IS ALSO USED BY MUSICIANS AND ARTISTS IN THEIR FIELD TO CREATE VISUAL REPRESENTATIONS OF SOUND. FOR EXAMPLE, THE ALBUM COVER FOR PINK FLOYD'S THE WALL FEATURES A PHOTO OF BASSIST ROGER WATERS' HANDS AS THEY PLAY A FRETLESS BASS GUITAR, WHICH HAS BEEN DUBBED "THE GREAT GIG IN THE SKY." ANOTHER EXAMPLE IS DAFT PUNK'S DISCOVERY, WHICH FEATURES AN IMAGE OF TWO DANCERS DANCING ON TOP OF A SPEAKER CONE THAT WAS PLACED ON TOP OF A PLATE RESONATOR.