One of a number of sessions cut at the Choreographers' Workshop, this 1963 set establishes Sun Ra's Arkestra as aNew York band, sonically coupled to developments in the decidedly urbane downtown arts underground.The stargazing clamor of the music reflects the intensity of a cultural crossroads where concrete and dustpervade any skyward view, from East 3rd Street to Mars and beyond. One of Sun Ra's rarest releases, it had negligible circulation through shops.