I remember back in 1974 that BBA played at the Rainbow theater and was broadcast on the radio.  They pllayed a few songs from the new album in progress that they never released.  Songs played live like Jizz Whizz, etc.  Do you have this concert?  If so, do you think you might stream it someday?  I've wanted to hear it again since I first heard it.  Anyone else know about this concert and would want to hear it?