Originally released as a 2LP by the (K-RAA-K)³ label in 2005, Sateenkaarisuudelma is Fonal label-head Sami Sänpäkkilä's fourth solo album under the name Es. The 2CD release is a trilogy containing three independent parts: "Sateenkaarisuudelma," "Maailmankaari" and "Pianokaari." Sateenkaarisuudelma was conceived from live songs performed on tour with Black Forest/Black Sea's Miriam Goldberg on cello, Jeffrey Alexander on guitar and effects, and Fursaxa's Tara Burke on vocals and keyboard. "Maailmankaari" I and II were recorded at Boston's WMBR radio station. Featuring rushing piano cadences and stabs, the sounds of burbling streams and static, softly chanting vocals, spectral, psychedelic ambience, dark koan/drones and endlessly looped guitar and electronics, this double album is a contemplative journey into a sound quite beyond freak-folk or Finnish quaintness. Other musicians include members of Kemialliset Ystävät, Kiila and Lau Nau.