Complex sentence: Most notable is another Rick Wright composition which at that time was known as "The Violent Sequence" and would later be reworked into "Us and Them" from "The Dark Side of the Moon".
Split into simpler sentences: Most notable is another Rick Wright composition which at that time was known as "The Violent Sequence". The piece would later be reworked into "Us and Them" on "The Dark Side of the Moon".