This document discusses potential music pieces for a psychological thriller film. It analyzes 4 pieces - "Classic Horror", "Dropplerette", "The Dance Begins", and "Redletter" - and evaluates whether each would help create the intended sinister and unsettling atmosphere through their use of low and high tones. "Redletter" is said to be most suitable with its low tones and occasional high strings and symbols to keep the audience on edge.