Uzeyir bey Abdulhuseyn bey oghlu Hajibeyov was an Azerbaijani composer, musicologist and teacher. He is recognized as the father of Azerbaijani classical music.
Hajibeyov composed the music of the national anthem of Azerbaijan Democratic Republic. He also composed the anthem used by Azerbaijan during the Soviet period. He was the first composer of an opera in the Islamic world. He composed the first oriental opera Leyli and Majnun in 1908 and since then he is revered for adapting the written masterpiece to the theatre.