I've Sound

I've Sound, or simply called I've (アイブ, Aibu?), is a Japanese techno/trance music production group based in Sapporo, Hokkaidō, Japan. Led by Kazuya Takase, it features the talents of seasoned "sound creators" and many different female vocalists, known as utahime (歌姫?) to their fans.

They have created the theme songs for many Japanese adult games, most famously the opening "Tori no Uta" to the visual novel Air by Key. More recently, they have been creating the theme songs to anime series. Among anime fans, I've Sound is well known for providing the theme songs to such series as Black Lagoon, the Please! franchise (Please Teacher! and Please Twins!), the Shakugan no Shana series, Starship Operators, Higurashi no Naku Koro ni, the Hayate the Combat Butler series, Nanatsuiro Drops, and Toaru Majutsu no Index.