Natch, Tree! Gots to keep it interesting, so we don't fall into monomania of sameness. Check out the very beginning of this video. Typewritten words appear on the screen, as if a writer is writing a novel. A film noir-like scene proceeds in black and white. Cool. (The scene is from a Sherlock Holmes film!) Thunder Train Sound : Train Video for Sleep and Noise Masking 2 Hours Long