The serpent is one of the most unusual instruments ever conceived, both in sound and structure, and often fascinates those who encounter it for the first time. The serpent is a bass brasswind instrument and was a predecessor to the tuba. Its snake-like form helps to position the finger holes within reach of the player's hands.
The serpent was said to accompany the lower voices for church services from the late 16th century. Its warm, resonant sound complemented male voices, and it found favour in English church bands during the 18th and 19th centuries. In churches that could not afford organs, the serpent sometimes accompanied the cello and the bassoon. As a wind instrument that could capably play the bass line, the serpent became a popular military band instrument during the mid 18th century. With shifting practices and use, makers saw the opportunity for practical modifications that resulted in a diversity of innovative forms. It was sometimes used as a bass voice in the orchestra, notably by Handel, Haydn, Berlioz, and Mendelssohn.