Thespis Trivia No. 1
The first collaboration of Gilbert and Sullivan was Thespis, or The Gods Grown Old: not an opera but a lightweight burlesque for the Christmas season at the Gaiety Theatre. The score was never published and most of the music is lost, except for one song which was printed separately, some recently-discovered ballet music and the chorus “Climbing over rocky mountain”, later used in The Pirates of Penzance. Both Gilbert and Sullivan already had established reputations, and it is unlikely that either of them saw Thespis as the start of a long-term partnership.