Since the late 1990s, the Soul Rebels brass band has forged its own brand of New Orleans music. The eight-piece outfit may look like a traditional brass band, but the sounds emanating from its instruments are far from fixed. In late 2017 the Soul Rebels signature is the collaboration, whether it be with iconic names in rap like Rakim and Prodigy or the metal stylings of Marilyn Manson and Metallica.

Most recently, the group has taken steps towards becoming New Orleans’ most popular touring...