helicon

The helicon is a brass musical instrument in the tuba family. Most are B♭ basses, but they are also built in E♭ or F, and occasionally in tenor or even smaller sizes. The helicon has a wide, roughly-circular shape designed to be worn around the player's body, with the tubing wrapped under one arm and the bell resting on the opposite shoulder.

The instrument is very popular in Central and Eastern Europe and is a common instrument for a military band and a mounted band. It is used by Ed Neuhauser of the traditional folk band Bellowhead.