Sigur Rós is an Icelandic post-rock band that formed in 1994 in Reykjavík. It comprises lead vocalist and guitarist Jón Þór "Jónsi" Birgisson, bassist Georg Hólm, and keyboardist Kjartan Sveinsson. From Wikipedia
Timed with the annual Moomin’s Day celebration, the launch brings the classic saga’s music-driven puzzles to mobile devices.
