Add marching band to bloxburg. Marching Snare, bass, tenor, and cymbals with standing variants as well. Add Flutes, Clarinets, Alto Sax, Tenor Sax, Bari Sax, Tuba, Trombone, Baritone, Trumpets. For build mode Add Drum major riser, standing percussion, music stands, stand racks, chair racks, marimba, xylophone, etc.