The term 'OOM-PAH BAND' is a type of musical ensemble that originated in Germany and Austria. It typically consists of brass instruments, such as trumpets, trombones, tubas, and clarinets, as well as drums and other percussion instruments. The music is characterized by a strong, driving rhythm and a heavy emphasis on the bass line. Oom-pah bands are often used for traditional folk dances, such as polka and waltz, as well as for marching bands.