Guitarist Jason Loeffler will join Todd Barton and Bruce Bayard for a concert of improvised, electronic soundscapes accompanied by a 24-foot projection of digital images, or “collage in motion,” at 8 p.m. Saturday, Sept. 1, at The DanceSpace, 280 E. Hersey St. Guitarist Loeffler’s debut album, “Nothing to Undo,” will be released this summer. Barton has worked as resident composer at Oregon Shakespeare Festival for more than 40 years, and Bayard is a self-taught visual artist. Tickets cost $10 and are available at www.babayard.com/triptychs or at the door.