Complex sentence: In Sydney, Australia, the Sydney Trocadero opened with a full-dress gala in January 1936was the main venue of Big Band jazz orchestras, with the resident Trocadero Orchestra under the baton of Frank Coughlan, and the Trocadero All Girl' Trocadero Band.
Split into simpler sentences: In Sydney, Australia, the Sydney Trocadero opened with a full-dress gala in January 1936. It was the main venue of Big Band jazz orchestras, with the resident Trocadero Orchestra under the baton of Frank Coughlan, and the All Girl Trocadero Band.