"The Departure" by Max Richter, featured in HBO's The Leftovers , is a melancholic solo piano piece characterized by a repetitive,, circular four-chord progression that reflects themes of grief and memory. The piece, often layered with subtle strings, serves as a poignant, atmospheric theme for the series, embodying the "stuck" feeling of loss and existential longing, with variations like "The Departure (Lullaby)" matching various emotional moments.