Great topic! Personally I'd like to hear as many backing tracks from the "Moog years" as possible. "Funky Pretty" of course is a must! It would be great to finally hear the instrumental backing of "I Wanna Pick You Up" because of the brilliant melody in the second verse. "Roller Skating Child", "The Trader", "I'll Bet He's Nice", "In the Still of the Night", "Child of Winter", you name it.
Don't forget Solar System!!!