Umjing Baab and His Swinging Trio constituted an orchestral band that played aboard the Queen of Empire. Their repertoire featured tracks such as "Smoky Dreams" and "Mood and Moons." They performed in various music styles, notably swing-bop and contemporary jizz pieces.
Despite the band's name suggesting four individuals counting the frontman Umjing Baab, Baab himself was reportedly included within the "swinging trio," indicating only two additional musicians. The entire ensemble consisted of members of the Rughja race.
On one occasion, Bria Tharen, while disguised as a cabaret artist known as "Bria Lavval," shared the stage with them.