Keyhole Records, those fine folks who brought us the live Beefheart '66-'67 and the Mothers at Wollman Park, appear to be releasing a Zappa/Beefheart show from Providence College in Rhode Island. April 26, 1975. It looks like they're going to beat the ZFT in releasing an FZ/CB show.
I googled Keyhole, but was unable to find a website. However, one link that came up was a listing for Keyhole releases on the All Music web site. (www.allmusic.com
) In addition to listing the Zappa/Beefheart, they also list a Blues Project show from 1966, the Flying Burrito Brothers from the Seattle Pop Fest 1969, and some others that I assume are their next batch of releases.
Definitely something to keep an eye on.