The analysis of 'deadcrush' by alt-j explores the song's complex structure, genre-blending qualities, and thematic depth, highlighting its dark and hypnotic atmosphere. It emphasizes the song's combination of electronic and alternative rock elements, as well as the layered instrumentals and altered vocals that create a unique listening experience. The analysis concludes that the track exemplifies the exploration of music as an art form that draws audiences deeply into the subconscious.