Holy Mackeral! He conducted a number of pieces that night including the opening singer at 4:20:
the greatest Gino Paoli with "Ieri ho incontrato mia madre" (=I met mother yesterday). Host of the night was Mr. Mike Buongiorno, who would have an incredibly long tv career, an Italian Regis Philbin so to speak. Morricone was just one among many conductors in the same Sanremo edition. Infact the same song was also conducted by Luigi Enriquez.