Livestreams of performances are often presented on the Twang! page
Also, Very often you can witness Twang! and/or Coincidence Machine performing (or rehearsing) on Twitch.
Typically Coincidence Machine performs @ 4:30pm EDT on Tuesdays
Twang! plays solo @2:30pm EDT on Saturndays
And often on Thursday afternoons Twang! shares his practice of North Indian Classical music.