That Tune 12 Hacienda 89 sounds really like the instr. of Sigmund und seine Freunde - Erdbeermund. I've not got it with me here, but you can find the vocal version on Youtube:
YouTube - Sigmund Und Seine Freunde - Erdbeermund
That "Everything in life's a chance, we throw the dice, and then we dance" is still driving me mad. Next year it will have been at the top of my most wanted list for twenty years! Someone must have written it, someone must have sung it, someone must have engineered on it... how can it stay secret for so long?