He later completed his Bachelors and Masters degrees in Composition at the Saint Petersburg State Conservatory in St. Petersburg, Russia. There he studied composition with Alexander Minatsakanian and Sergei Slonimsky and conducted research on eastern music with Professor Tatiana Bershadskaya. Apart from his education in Russia Mr. Hosseini has also been a student of composer, Nigel Osborne.

Hosseini has written symphonic, chamber orchestra and for ensembles and for soloists in various compositional genres. His work for theatre, film and many broadcasting projects for Iranian National TV have always been an important feature of his creative output as well.

At its core his music reflects his on-going research into the astonishing variety of regional folk music to be found across Persia (Iran), and in particular the structure of magham music. In this, his music achieves a subtle fusion of what one could call the convergence between contemporary composition and the ancient Persian music tradition. His Quartets utilizes folk material from Northern Khorestan and Bakhtiari, his Sonata for Violin and Piano is based on Turkman-sahra songs and the composer’s 2008 Concerto for String Quartet and Chamber Orchestra finds its source in the magham of southeastern region of Torbate-jam.