Lunatic Soul is the solo project of Mariusz Duda, the lead singer and creative force behind the Polish band, Riverside. Duda is keen to stress that Lunatic Soul doesn't represent the end of Riverside, instead it represents an opportunity for him to explore other musical avenues before embarking on the next Riverside album. Their sound, which blends a variety of instruments including keyboards, piano, flute, harmonica, Hammond organ, e-bow, acoustic guitar, bass and various kinds of vocals, has been described by Duda as "an oriental-trans-psychodelic-verbal-musical journey through the pitch darkness available only to those who have? a lunatic soul."