Jem Aswad Senior Music EditorPrince’s musical career had many peaks, but he was most on top of the world — literally — on March 30, 1985, when he and the Revolution played a concert at the Carrier Dome in Syracuse, New York that was broadcast all over the planet in the first global telecast of its kind.Even with the “Purple Rain” album, film and tour at the peak of their Oscar, Grammy and chart popularity, and the 100-date tour in support of both nearing its end, Prince was never one to stay in the same place for long. By that date, he and the Revolution had completed their next album, “Around the World in a Day,” and were already working on the next one (“Parade”), and would embark for the South of France to shoot their next feature film, “Under the Cherry Moon,” within a few weeks.