What type of instrument is a euphonium?

A euphonium is a low-pitched brass instrument that is similar in shape and size to a tuba. It is a member of the brass family and is played by buzzing the lips into a mouthpiece to produce sound. The euphonium has a warm and mellow tone and is often used in brass bands, concert bands, and marching bands. It is also used as a solo instrument and is featured in many classical compositions.