Proto-Prog

Proto-Prog (short for proto-progressive) is the earliest work associated with progressive rock, these bands were influenced by Modern Classical Music and other influences outside of traditional rock influences. They often employed longer and more complicated compositions, interconnected songs as medley, and recording studio as an instrument. Some of the artists that were essential to the development of progressive rock, include The Nice, early Pink Floyd, Vanilla Fudge, Procol Harum, and early Soft Machine.