Coming soon: Zappa live in Chicago 1973

Yet another interesting Frank Zappa release is on its way. A four CD set with two shows from 1973, featuring the Roxy band with George Duke, Ruth Underwood and others.

zappa.com says: 
"Now for the first time ever, Zappa’s two complete Halloween shows recorded on October 31, 1973 in Chicago, will be released on October 25 via Zappa Records/UMe, just in time for Halloween."

https://www.zappa.com/news/frank-zappas-halloween-shows-recorded-live-1973-auditorium-theater-chicago-be-released-first