Musique concrète
The term musique concrète (French for "real music", literally "concrete music"), was coined by Schaeffer in 1948. Schaeffer believed traditionally classical (or as he called it, "serious") music begins as an abstraction (musical notation) that is later produced as audible music. Musique concrète, by contrast, strives to start with the "concrete" sounds that emanate from base phenomena and then abstracts them into a composition. The term musique concrète is then, in essence, the breaking down of the structured production of traditional instruments, harmony, rhythm, and even music theory itself, in an attempt to reconstruct music from the bottom up.