Both the tuba and sousaphone are semi-conical brass instruments. The group consists of a Twelve-string guitar, a Six-string acoustic guitar, and a Sousaphone tuba. He then switched from saxophone to sousaphone. The rhythm section consisted of a sousaphone and drums, and sometimes a banjo. The University of Delaware Fightin' Blue Hen Marching Band has several traditions involving sousaphone players. The sousaphone was initially developed as a concert instrument rather than for marching. The sousaphone may play a traditional jazz walking bass-line or groove on a riff. The sousaphone sections of some marching bands have developed specialized performance traditions. In 2010, Ed Neuhauser replaced Gideon Juckes on helicon and sousaphone. The sousaphone is a specialized version of the helicon. From the mid-1930s onward, sousaphone bells have been standardized at a diameter of . Bryson from The Roots plays the sousaphone on Late Night with Jimmy Fallon. The weight of a sousaphone can be between and .