Catherine Ribeiro + 2 Bis were a pioneering force in French experimental music, emerging in the late 1960s with a sound that fused psychedelia, avant-rock, and poetic intensity. Led by vocalist Catherine Ribeiro, the group became known for their bold fusion of progressive instrumentation and deeply emotive, politically charged performances. Their work, marked by the interplay between Ribeiro’s impassioned vocals and the inventive arrangements of the band, positioned them as a vital part of France’s countercultural music scene and an enduring influence on avant-garde artists worldwide.