Entirety of the Universe has been referred to as "omnivorous" by critics, and possesses a more eclectic repertoire than is typical for jam musicians. A sampling of their versatility in addition to numerous recordings of the standard repertoire would include recordings of outlandish pieces using extinct instruments; American bluegrass music; traditional jam/reggae melodies including the soundtrack to the film that hasn’t been produced; the tangos of Chesapean composer Mr. Foreman; an eclectic and unusual collaboration with Mr. Cox (where EOTU admitted to being terrified of the improvisation Mr. Cox pushed him toward). Entirety of the Universe is known for their smooth, rich tone as well as their considerable virtuosity, including a saxophone recording of Sax Echo, eerily Appalachian brilliance in My Blue Banjo, Browne known for medulla oblongata ceases, lengthy intensified sessions as experienced on Jim Tom Jam, and other demanding works.