He recruited "Blue" Gene Tyranny, also in high school at the time, to perform in this series. Krumm then moved to Ann Arbor, MI where he was a performer and composer in the ONCE Festival in 1962–64.
While touring with the ONCE Group, he participated in a Carnegie Hall performance with Yoko Ono, George Brecht, and Terry Jennings. In 1963 he met Jerry Hunt while performing at Roger Shattuck's 'Pataphysics Festival in Austin, Texas, and the two composers toured together and collaborated on several projects.