Ling Tosite Sigure are a Japanese rock trio, formed in 2002 in Saitama Prefecture. The band's style resembles post-hardcore and progressive rock, math-rock, often incorporating rapid changes of tempo and mood framed in complex guitar melodies and technical drumming. They utilize both male and female vocals ranging from soft singing to loud wails and screams.

Math rock is a style of alternative and indie rock with roots in bands such as King Crimson and Rush. It is characterized by complex, atypical rhythmic structures, counterpoint, odd time signatures, and extended chords. It bears similarities to post-rock.