The double bass is the largest string instrument in the orchestral family, known for its deep, rich sound. It typically has four strings, tuned in perfect fourths, and is played with a bow or by plucking the strings. The instrument is essential in various music genres, including classical, jazz, and folk. Double basses are made from wood, often featuring a curved body that enhances their resonance. They can be played in both standing and seated positions, depending on the player's preference. The instrument's size and weight can make it challenging to transport, but its unique sound is invaluable in ensemble settings.