Deluxe and limited 50th anniversary edition of Dr. Johns fourth studio album for Atco Records. Three LP expanded release with deluxe packaging and new liner notes featuring over 70 minutes of previously unreleased material on two discs, recorded during the 1971 album sessions and making a physical debut for RSD Drops. Only one track from the bonus material was previously available on the limited Run Out Groove vinyl release: Dr. John: Professor Bizarres Funknology.