Schleiermacher has been a freelance composer and pianist since 1988. As a performer he focuses exclusively on music of the 20th century. As he writes in the liner notes, "The early, radical pieces by Philip Glass always tend to divide the public into two camps on their (quite rare) performances: some listen as if spellbound and open themselves up to the hypnotic, trance-like effect of the music, while others are bored and annoyed by the endless, inane repetitions."
"This is the music that gives minimalism its name. These early experiments show the composer in the embryonic stages of the 20th century American shift away from the music of Europe…. With the exception of the One One pieces, all works are scored for solo organ and are performed thus—often with parallel arpeggios for both left and right hands. Both One One pieces are performed by tapping out written rhythms on a tabletop. This is an important document of the development of a new style, and it is a credit to the performer and producers of this album that they had the vision to make new recordings of these works."—All Music Guide