Chuck Greenberg is an American musician known primarily for his work as a keyboardist and composer in the progressive rock genre. He gained prominence in the late 1980s as a member of the band Glass Hammer, a group that emerged from the Tennessee music scene and became notable for their rich, symphonic sound and complex compositions. Greenberg's notable works include contributions to Glass Hammer's albums such as "Journey of the Dunadan" (1993) and "Lex Rex" (1996), where his keyboard work and compositions helped define the band's signature style. He is also known for his solo projects and collaborations with other artists in the progressive rock community. His impact on music lies in his ability to blend traditional rock elements with classical influences, contributing to the resurgence of progressive rock in the 1990s and beyond. Greenberg's intricate keyboard arrangements and melodic sensibilities have inspired a new generation of musicians within the genre, solidifying his legacy as a key figure in the progressive rock movement. His work continues to resonate with fans of the genre, and he remains an influential figure in contemporary progressive rock.