Sigh is a Japanese avant-garde black metal band known for their experimental and genre-blending approach. Formed in 1989 by Mirai Kawashima, Sigh has continuously pushed the boundaries of metal by incorporating elements of classical, jazz, and electronic music, creating a distinct and unpredictable sound. Albums like Imaginary Sonicscape and Heir to Despair are celebrated for their creative arrangements and daring compositions, offering fans a surreal journey through dark, atmospheric landscapes. Sigh’s unique sound and innovative approach have earned them a dedicated international fanbase, making them one of Japan’s most iconic metal bands.