Band music is one of those early 20th Century pleasures that are a little hard to figure out a century later.
Early 20th Century audiences loved marching band music. It was the golden age of John Phillips Sousa and Edwin Franko Goldman. Audiences thrilled to marches performed by musicians in military or quasi-military uniforms with brass buttons, epaulets, braiding, and strange hats with crests, badges, feathers, and all manner of impractical stuff sticking off of them.
Band fans liked to watch marching and drilling and all of that. They adored a processional.
Indianola gave audiences what they wanted. Concerts and maneuvers by bands like Gilland's Hussars ("the most elaborately uniformed band in the world"), The British Guards ("costumed in the scarlet and gold of the British military"), Vitale's Famous Orchestral Band, Ciricillo's Italian Boys' Band, and Sennet's Female Military Band were a daily feature of Indianola's first decade.
Many of these bands had gimmicks to distinguish them from the scores of other bands. There were Italian bands, Hungarian bands, Russian bands, female bands, youth bands, bands with the youngest conductor, and so forth.