Jazz Q was a pioneering Czech jazz-rock ensemble from Prague, active from 1964 to 1985. They gained prominence with their 1970 collaboration with Blue Effect on the album "Coniunctio." Their 1973 release, "Pozorovatelna" (The Watch-Tower), featured English vocalist Joan Duggan, who also contributed to their 1974 album "Symbiosis." Throughout their career, Jazz Q's dynamic fusion of post-bop and jazz-rock, along with collaborations with artists like Duggan, solidified their status as innovators in the European jazz scene. ([jazzrocksoul.com](https://jazzrocksoul.com/artists/jazz-q/?utm_source=openai))