It contains a mixture of songs and instrumentals by YMO (including a humorous reworking of Archie Bell & the Drells' "Tighten Up"), interspersed with comedy sketches.
The Barker lever is a pneumatic system which multiplies the force of a finger on the key of a tracker pipe organ.
Also on the 2nd verse of the song, Pusha T diss Birdman by saying "Claim they five stars but sell you dreams. They say death multiplies by threes. Line them all up and let's just see Fuck em 'Ye, fuck em 'Ye!" which in an interview with HipHopWired, Pusha T explains that was directed at a comment Birdman had about G.O.O.D. Music: ‘New God Flow’ was about, in my view, something I read in a Birdman interview that I didn’t like.