Jack: A Flash Fantasy (1974)

Jack: A Flash Fantasy is a rock opera produced by the CBC. Jack dealt with a deck of cards, with lots of Jacks (and Jills). Jack was the jack of hearts (with a full, trusting heart), Jill (Gilda) owned a cow, named moo, "because even though the cow laughed and cried and talked and shouted, it all came out as, MOO!" Jack and Jill are taken advantage of by the Jack of Spades. Different musical styles are portrayed by the different characters.