For amplified ipad and band with large percussion section

The title "Category 4" refers to Hurricane Harvey, classified as a Category 4 hurricane on the Saffir-Simpson hurricane wind scale. This piece for Concert Band with iPad utilizes a large percussion section as well as an amplified iPad with the GarageBand application. This evocative work combines electronic sounds with the power of the concert band to full dramatic effect. A full video tutorial for the iPad part can be found at https://...