Alexander Yakovlevich Rosenbaum (Russian: Александр Яковлевич Розенбаум, Aleksandr Jakovlevič Rozyenbaum) (born September 13, 1951 in Leningrad, Soviet Union) is a Soviet and Russian bard from Saint Petersburg. He is best known as an interpreter of the blatnaya pesnya (criminal song) genre. Modern singers in this genre, such as Михаил Шуфутинский often sing Rosenbaum's songs. Rosenbaum graduated from the Pavlov Medical School in 1974, and worked in the medical field for four years. His musical education consists of piano and choreography courses at a musical school. In 1968, while still a student, Rosenbaum started writing the songs for which he is famous. His early songs were for student plays, but he soon also wrote for rock groups and started performing as a singer-songwriter in 1983, sometimes under the pseudonym "Ayarov". Among his most famous songs are the ones about the Soviet-Afghan War, Cossacks, and the Jewish Mafia in Odessa. Songs such as "Гоп-стоп" (a comedy about two gangsters executing an unfaithful lover) and "Вальс-Бостон" (The Boston Waltz) are popular across Russian social groups and generations. Rosenbaum accompanies himself on either a six- or twelve-string acoustic guitar, using the Open G tuning adopted from the Russian seven string guitar. Rozenbaum.ru