The alto flute is a member of the flute family, pitched in the key of G, which makes it a fourth lower than the standard concert flute. It is typically made of silver or other metals and features a larger body and a wider tone hole, contributing to its rich, warm sound. The instrument is often used in orchestras, chamber music, and solo performances. Unlike the concert flute, the alto flute has a more mellow timbre, making it suitable for various musical styles, including classical and contemporary genres. It is played by blowing across the embouchure hole, similar to other flutes, and requires a different technique due to its size and pitch.