His travels as a performer have covered much of the North American continent and Europe. He has performed extensively as a soloist as well with groups. He is a founding member of several innovative ensembles, and is responsible, in full or in part, for many albums of original music, with Edgetone Records and Pax Recordings as well as some self released.
Thollem has performed in theaters, art galleries, universities, elementary schools, concert halls, jazz clubs, rock clubs, festivals, warehouses, house concerts, streets, forests, the Shoshone Desert at the Nevada nuclear test site, on television, radio, in circuses, and riots. He has performed piano concertos with symphonies, played in many free improv groups, West African drumming troupes, and Javanese gamelan ensembles, all the while working as an accompanist and a composer for opera and modern dance.
Currently Thollem primarily plays his own comprovisations which he calls post-classical circus punk world jazz free music, for people and everyone else. His music whispers/screams, "there are as many worlds in a life as there are lives in the world".