What's that iconic piece of music that typically plays over spoken intros about gangsters and molls-era Noo Yoik. Imagine smoky black and white, then a lone voice talking about his last case as a private detective. Opening note(s) kinda sound like an old air raid siren, but it's some brass instrument. I dunno, a trumpet or whatever.
WHAT IS IT? I've had it stuck in my head all day.