細胞文学 (Saibou Bungaku) is an avant-folk / chamber folk duo formed in 2003 in Kyoto, Japan. The members are Tomoaki Saito (guitar, vocals) and Seijiro Kuroda (cello). Saibou Bungaku is one of the most quiet music in the world. The core of their music is the soundscape among the two instruments and the voice. It's quiet but very loud and psychedelic.