Complex sentence: At the beginning of the game, Pomp and Circumstance played as the Professor was introduced and when the game was won, an owl perched on top of the set would flap its wings while a grandfather clock's hands spun rapidly.
Split into simpler sentences: At the beginning of the game, Pomp and Circumstance played as the Professor was introduced. When the game was won, an owl perched on top of the set would flap its wings while a grandfather clock's hands spun rapidly.