From Tokyo, Japan

From last.fm:

There are at least six artists sharing the name Mono: The name is used by a Japanese post-rock band, a British trip-hop band, a Dutch indie-rock band, a female Austrian reggae artist, a Swedish trance artist and a Korean pop ballad trio. _____________________ Japanese: Mono are a post-rock group from Tokyo, Japan formed in 1999. The songs, all of which are instrumental, are usually focused on layered guitar melodies. Strings and pianos are also prominently featured in some songs. MONO are known for their powerful live shows, and their complex guitar work. Read more about Mono on Last.fm.