The Anglo concertina is a free-reed musical instrument that belongs to the concertina family. It features a hexagonal shape and is played by pressing buttons on the ends while expanding and contracting the bellows. The instrument produces sound through the vibration of reeds, which are activated by the airflow created by the bellows. Typically, the Anglo concertina is tuned in a diatonic scale, making it popular in folk music traditions, especially in Irish and English styles. It is known for its bright, expressive sound and is often used in ensemble settings or for solo performances, providing a lively accompaniment to various musical genres.