The most successful of these sounds meant artists such as Isaac Hayes eclipsed Otis' success, but in typical BGP style we take the road less travelled to bring a selection of sought-after rarities and unreleased gems that perfectly reflect the era. * Our earliest cut is the in-demand funk/ R&B groove of Stacy Lane's `No Ending' produced by the legendary Packy Axton, the founder of the Mar-Keys.