When did the person Kosti Vehanen spend a decade accompanying die?
Kosti Vehanen Kosti Vehanen (31 August 188713 March 1957) was a Finnish pianist and composer. As a pianist he performed in more than 3,000 concerts on four continents. While he did perform as a concert soloist with major symphony orchestras and performed in recitals, he is best remembered for his prolific work as an accompanist with some of the most important singers of the first half of the 20th century. As a composer, he produced piano pieces, arrangements of folk songs, solo songs, two ballets, and a violin and cello fantasy. In addition, Vehanen also penned several memoirs, including 1941 book chronicling his decade long experience serving as Marian Anderson's accompanist.
Jaan Anvelt Jaan Anvelt (in Russian Ян Анвельт, also known by the pseudonyms Eessaare Aadu, Jaan Holm, Jaan Hulmu, Kaarel Maatamees, Onkel Kaak or Н. Альтъ; 18 April 1884 – 11 December 1937), was a Soviet revolutionary, leader of the Communist Party of Estonia, the first Premier of Soviet Estonia, and the Chairman of the Council of The Commune of the Working People of Estonia (Estonian "Eesti Töörahva Kommuun"). Imprisoned during Joseph Stalin's Great Purge in 1937, he died from the injuries sustained during a beating by Aleksandr Langfang while in NKVD custody.