Sound collage is an artistic technique that combines various audio elements to create a new composition. This can include snippets of music, spoken word, environmental sounds, and other audio clips. The goal is to blend these different sounds in a way that forms a cohesive piece, often evoking emotions or telling a story. Artists like John Cage and Brian Eno have popularized sound collage in contemporary music. It is often used in genres such as experimental music and sound art. By layering sounds, creators can explore themes and ideas in innovative ways, challenging traditional notions of music and sound.