When the band Cathedral broke up following the release of their second CD There in the Shadows, keyboardist Todd Braverman set about forming a new group to realize his vision of a purely 1970’s-style progressive rock album inspired by and patterned after his favorite bands. Listening to this 78-minute album, those bands would have to be Genesis, Yes, and Pink Floyd. Ad Infinitum have not one but two excellent lead vocalists, each singing lead on roughly half the songs. The tracks are long and the instrumentation is vintage in keeping with the goal of a 70’s sound. You probably don’t need to be told that the cover painting and logo are by Roger Dean, who heard the music and felt it was worthy of his art.