The document provides an A-Z list of musical instruments. It describes several instruments briefly for each letter of the alphabet, including information on what the instrument is, where it originated from, and other key details. Some of the instruments described include the alto horn, banjo, cimbasso, doulophone, euphonium, flute, guitar, horn, inci, jiohu, kagul, lute, maraca, naqara, octoban, piano, qin, ruan, shakuhachi, tambourine, ukulele, violin, wind chimes, xylophone, yu, and zither.