Amazing, historic, never-before-public recordings from an under-documented, under-appreciated but highly developmental era of jazz and new music comes to light! Complete sets and interviews from the international stars who gave birth to world jazz and downtown improv at the Manhattan arts loft Soundscape will be broadcast by WKCR-FM  and archived online starting Sept. 6 — and are also at the core of the subscription-based CMS Archival Project, recently launched by the Creative Music Studio (Woodstock, NY, circa 1971 – ’84). And oh yes: audio clips have emerged of Edgard Varese conducting Charles Mingus et al in “free” electro-acoustic improvisation, 1957. This should all be big news to musicians, musicologists, listeners and anyone interested in contemporary American culture, as these sounds got us to what we hear now.