Home Videos NAMM ’18 – Reverend Guitars BC-1 Billy Corgan Signature & Airsonic Demos NAMM ’18 – Reverend Guitars BC-1 Billy Corgan Signature & Airsonic Demos planetsixstring January 27, 2018 comments off Tweet on Twitter Share on Facebook Google+ Pinterest Greg Koch plays the Billy Corgan Terz, a high-tuned time machine, and we get a close-up look at the f-holed Airsonic model.