premise: Ahmad Jovdat Ismayil oglu Hajiyev (June 18, 1917 - January 18, 2002) was one of the major Azerbaijani composers of the Soviet period. He is remembered for his monumental orchestral works, having been the first Azerbaijani to compose a symphony (1936). He studied under Azerbaijan's Founder of Composed Music, Uzeyir Hajibeyov and under Russian composer Dmitri Shostakovich.
hypothesis: Hajiyev did not study under American tutelage.
reason: The context states that Hajiyev studied music with Azerbaijani and Russian composers. Therefore he did not study with an American teacher.