Summary (tl;dr)

Mariusz Duda, the co-founder, frontman, and primary songwriter of the Polish progressive rock band Riverside, has announced his departure from the group after 25 years, citing creative stagnation and internal "toxic dynamics."

Essential Background

Riverside, a progressive rock band from Warsaw, Poland, was formed in 2001 by Mariusz Duda (bass, vocals), Piotr Grudziński (guitar), Piotr Kozieradzki (drums), and Jacek Melnicki (keyboards). Mariusz Duda has been central to the band's sound and lyrical themes, also maintaining a solo project called Lunatic Soul. The band gained international recognition over the years, releasing several studio albums, with their most recent being "ID.Entity" in January 2023.

The Full Story

On April 23, 2026, Mariusz Duda publicly announced on social media that he is leaving Riverside, marking an end to his 25-year tenure with the band. In his statement, Duda expressed that the band's internal environment no longer allowed him to pursue his passion for creating new music, and he was "tired of pretending and forcing a smiling band image which, in recent years, has had nothing to do with reality." He revealed that his recent Lunatic Soul album, "The World Under Unsun," subtly reflected his deteriorating situation within Riverside. Duda stated his intention to now primarily focus on Lunatic Soul as his main studio and live project.

Why It Matters

This news is significant for fans of progressive rock, as Mariusz Duda's departure casts serious doubt on the future of Riverside, with Duda himself stating that he doesn't see the band continuing in its current lineup and that restarting with a different one would be "extremely complicated." As a founding member and the band's main composer, vocalist, and bassist, his exit represents a major shift that could potentially lead to the dissolution of one of Poland's most internationally recognized progressive rock acts. Fans are concerned about the creative void his departure will leave and the impact on the band's distinct sound and future output.

Geographic Location

• Warsaw, Masovian Voivodeship, Poland (origin of Riverside band)