This is a great old recording in relatively high quality, which is demo/sales pitch where Herbie talked about the Fender Rhodes and some of the effects he was using.  This was recorded some I figure in 1973 or 1974, just before his Thrust album came out. 

The Spook Who Sat By the Door was a Blaxploitation era movie that Herbie Hancock did the soundtrack for. The theme song eventually became the song “Actual Proof” on Thrust. Look for more posts about this album and ‘the spook’ soundtrack coming up some time…