Sound art is a form of artistic expression where sound serves as the central medium and material.
In sound art, anything that makes noise can be part of an artwork. The pitter-patter of rain, spoken word poetry, silence itself, and even contemporary uses of ASMR can all qualify as sonic art.
Sound art is more of an aural experience than visual art, but visual elements can coexist with sound. For example, composer John Cage and Dada artist Marcel Duchamp collaborated on Reunion (1968), a concert in which Cage and Duchamp played a chess game where moves triggered Aleatoric music via photoelectric cells under the chessboard.