Musician. He gained recognition as a Russian classical violinist as well as the director of the Kremlin Orchestra for Tsar Nicholas II. Born Alexander Yakovlevich Mogilevsky in the Ukraine, which was part of the Russian Empire, into a family of musicians, he relocated to Moscow at age 18 to study music at the Moscow Conservatory, graduating first in his class. In 1910 during the tumultuous pre-revolutionary period of Russia, he toured with is colleague Alexander Scriabin Alexander Scriabin, performing in some of the most non-traditional styles. In 1915 his friend Scriabin suddenly died, and in 1917 Nicholas II, the last tsar of Russia, and his family were executed during the Russian Revolution, which both impacted his personal life as well as his career. Starting in 1920, he taught at the Moscow Conservatory and led the Stradivari State Quartet. Upon leaving the conservatory in 1922, he began touring abroad and taught at the Russian Conservatory in Paris. In 1929 he married the pianist Nadezhda Nikolaevna Duchess von Leuchtenberg de Beauharnais, and the couple began touring together in the Far East such as in Singapore, the Dutch East Indies, and Japan. After making their home in Japan, the couple had one son that lived to adulthood, but divorced in 1938 with his wife and son relocating to California. He continued to teach as well as play concerts in Japan. He taught in the early 1930s the violin to Shinichi Suzuki, who became internationally known for his method of teaching the music: the Shinichi Method. He also taught the beautiful violinist Suwa Nejiko. He died at 67 in Japan and was buried there.One of his students Kiyoshi Kato, published a monograph honoring him "The Soul of Music" in 1966. His great nephew, Evgeny Mogilevsky, is a well-respected pianist. His recordings are still available in the 21st century.