Modular on the Spot began as an impromptu live modular synthesizer performance gathering organized by Bana Haffar and Eric Cheslak (Rodent 516) in Los Angeles, California. The idea is to bring people together to experience live modular in the context of the outdoors, away from clubs and studios. These events are entirely focused on modular synthesizers - no external gear such as laptops or drum machines are allowed. Modular synthesizers let the artist mix and match modules to create their own personal instrument. Hands on control and the ability to be re-routed by patch cables in whichever configuration the user chooses creates a personal and often experimental sound.
MOTS has since been replicated in numerous other cities, including San Francisco, Atlanta, Asheville, Seattle, Chicago, Philadelphia, and Milwaukee. The Seattle MOTS series is organized by Josh Lim and Bradley Millington.