Influenced by his work on Stewart's concept album Time Passages, Parsons decided to begin creating his own thematic records; along with songwriter Eric Woolfson, he soon founded the Alan Parsons Project. Although Parsons played keyboards and infrequently sang on his records, the Project was designed primarily as a forum for a revolving collection of vocalists and session players -- among them Arthur Brown, ex-Zombie Colin Blunstone, Cockney Rebel's Steve Harley, the Hollies' Allan Clarke, and guitarist Ian Bairnson -- to interpret and perform Parsons and Woolfson's conceptually linked, lushly synthesized music.

The Project debuted in 1975 with Tales of Mystery and Imagination, a collection inspired by the work of Edgar Allan Poe; similarly, the science fiction of Isaac Asimov served as the raw material for 1977's follow-up, I Robot. With 1980's The Turn of a Friendly Card, a meditation on gambling, the Alan Parsons Project scored a Top 20 hit, "Games People Play"; 1982's Eye in the Sky was the Project's most successful effort, and notched a Top Three hit with its title track. While 1984's Ammonia Avenue went gold, the Project's subsequent LPs earned little notice, although records like 1985's Vulture Culture, 1987's Gaudi, and 1996's On Air found favor with longtime fans. Time Machine followed in 1999. After taking a five-year hiatus, Parsons returned in 2004 with A Valid Path.