The cello or violoncello is a bowed string instrument of the violin family with four strings and usually tuned in perfect fifths. The cello, about 27.5 inches (70 cm) long (47 inches [119 cm] with the neck), has proportionally deeper ribs and a shorter neck than the violin. An individual who plays the cello is called a cellist. The cello produces sound by drawing a bow across one or more strings, by plucking the, or by a variety of other techniques. The cello is played by musicians in a wide variety of musical genres, including Baroque music, classical, jazz, country music, bluegrass music, folk music, metal, rock and roll, and soft rock.