Complex sentence: The Beatles first played at the Indra club in Hamburg, but they slept in the Bambi Kino (cinema) in small, dirty rooms, which were noisy, cold, and directly behind the screen.
Split into simpler sentences: The Beatles first played at the Indra club in Hamburg. The group slept in the Bambi Kino (cinema) in small, dirty rooms, which were noisy, cold, and directly behind the screen.