THE MOTHERS OF INVENTION - WOLLMAN RINK, CENTRAL PARK, NY, AUGUST 3RD 1968

• the mothers of invention: wollman rink, central park, ny, august 3rd 1968
      (2014, cd, uk, keyhole)

1968 08 03 concert "schaefer music festival", 'wollman rink', central park, new york city, ny, usa

frank zappa: guitar

ray collins: vocals

roy estrada: bass

jimmy carl black: drums

art tripp: drums, percussion

ian underwood: keyboards, woodwinds

don preston: keyboard

bunk gardner: woodwinds

motorhead sherwood: sax

1. jazz rock improvisation

2. help, i'm a rock

3. baby love

4. big leg emma

5. holiday in berlin

6. trouble every day

7. orange county lumber truck

I don't know which loophole got exploited, but "Wollman Rink, Central park, NY, August 3rd 1968" is being advertised as a new release by The Mothers Of Invention and it's available from most retailers.
I guess we should consider it as some sort of (semi-)official release.

As for the music, the 1968/08/03 recording has been circulating amongst collectors for many years. It's an excellent sounding stage / audience recording featuring the early Mothers Of Invention in one of their insane shows.