Hosseini received his master"s degree and Doctor of Music degree (DMA) in Composition from Saint St. Petersburg State Conservatory, named after North. A. Rimsky-Korsakov. Hosseini then entered the Saint-St. Petersburg State Conservatory in 2001 where he under the guidance of Professor Tatiana Bershadskaya studied musicology and composition with Professor
Mnatsakanian and continued postgraduate course with the composer Sergei Slonimsky.
His early musical experiences included from 1998–2001, where he studying music theory, Persian music and composition with Farhad Fakhreddini in Tehran. Mehdi Hosseini completed a composition course from the University of Music and Performing Arts, Vienna in 2007 during the summer courses at Mürzzuschlag, Austria where he studied with Nigel Osborne. Hosseini’s compositions include works for large orchestra, chamber orchestra, voice, solo piano and various ensembles and has been performed and recorded by the Saint St. Petersburg Academic Symphony Orchestra and the Saint-St. Petersburg State Philharmonic Symphony Orchestra.
He was the focus of attention in Russia as a composer.
Mehdi Hosseini made an invaluable contribution to the development of the Saint St. Petersburg cultural scene in 2010 when he opened the Saint St. Petersburg Contemporary Music Center “reMusik.org” and in 2013, he founded the Saint-St. Petersburg International New Music Festival "reMusik".
