Famous in Japan's doujin community for their prolific output and inventive
music, IOSYS formed in October 1998 and began releasing popular remixes of songs
from the Touhou Project video game series nearly 10 years later. Tōhō
Kazakuraen, the group's first Touhou Project-inspired album, arrived in May
2006. By avoiding record labels and selling its own albums via doujin
conventions like Comiket, IOSYS was able to remain independent even as the
band's audience grew. Tōhō Otomebayashi was released in August 2006 and, like
Tōhō Kazakuraen, consisted mainly of instrumental music influ...