The kaba gaida or rodopska gaida, is the bagpipe of the central Rhodope mountains, it is a distinctive symbol of Bulgarian folk music. It is made from wood, horn, animal skin and cotton, and is similar to the gaida, but lower pitched and usually with a larger bag. The chanter has a specific curve at the end, with a hexagonal section, and the shape of the channel inside the chanter is reverse cone. The most common drone tone on a kaba gaida is E.