Guitarist Kalle Kalima’s acoustic group, Soi Ensemble, plays melodically rich folk lieds composed by Kalle Kalima. The lyrics are written by Essi Kalima. The songs are performed by three up-and-coming Finnish vocalists, Johanna Iivanainen, Eeppi Ursin and Merzi Rajala. In the band you find Riikka Lampinen (cello), Kalle Kalima (guitar), Mikko Helevä (organ) and Mongo Aaltonen (percussion). The debut album of Soi, Pehmeä (soft) was released in October 2003 by Texicalli Records in Finland and their second album Koiperhonen was released in March 2006.