Timpani are large kettledrums (drums with a rounded bottom) that can be tuned to play specific pitches. The sousaphone was additionally invented to be used in a marching band; its tubing is wrapped so that the player can carry it on the shoulders. The mellophone is an E flat or F transposing instrument with a forward-facing bell that is more suitable for marching bands than the French horn. In marching bands, the horn gamers typically play mellophone and the tuba players play the sousaphone. Its...