My mate has, buried somewhere in his house, a great 45 on Aura (a PJ subsidiary) by the Sonny Knight Combo () - "Let's get it on" pts 1 & 2. This was recorded many years before Marvin Gaye wrote an entirely different tune by the same name. It's a rocking, surging, jazz organ instrumental, rather along the lines of Billy Larkin & the Delegates, who also recorded for Aura.
MG