The Scottish tenor drum is a musical instrument used within Scottish pipe bands. It is a double-headed membranophone that is held vertically with one head up, one head down, and played with soft mallets on the top head only. Common sizes of drums are 15, 16, 18, or 20 inch in diameter, with 12, 14, or 16 inch depth. The playing style of the Scottish tenor drum has varied throughout the years, but there is typically a variation of the combination of swings (or flourishes) and rhythmic accompaniment to the Scottish snare drum and the Great Highland Bagpipes. It is similar to the more common marching band style tenor drum.