Chihei Hatakeyama (born 1978) is a sound artist and musician living on the outskirts of Tokyo. He has performed for years under his given name and also as one half of the electroacoustic duo Opitope, along with
Tomoyoshi Date. Hatakeyama polychromes memory-evoking soundscapes with various recorded materials of electric, acoustic instruments such as electric guitars, vibraphone, and piano. His releases, , solo or in collaboration with Corey Fuller,
Eraldo Bernocchi, Ken Ikeda, Tetuzi Akiyama,
Federico Durand,
Stephen Vitiello, etc., are on Kranky,
Room40, Under the Spire, Hibernate Records, Magic Book Records, Home Normal, OwnRecords, Spekk (as Opitope), and his self-run White Paddy Mountain.