The marching brass bands used more instruments than the dance bands. And those brass bands could play legitimate marches, the same marches the Army Band of the United States would play for the President if he died. They could play beautiful hymns and marches, like "Nearer my God to Thee" and "Maryland, My Maryland". But when they came back from a funeral-- and the band, by the way, never went into the cemetery when the band played for a funeral--well, on the way back, they'd put their music in their pockets and everybody started wailing.