Because the man that was passionate about creating quality musical performance ensembles for young people, just like a Russian composer born in 1904, he founded what?
Dmitry Kabalevsky Dmitry Borisovich Kabalevsky (Russian: Дми́трий Бори́сович Кабале́вский ; 30 December [O.S. 17 December] 1904 14 February 1987) was a Russian composer.
Boleslav Yavorsky Boleslav Leopoldovich Yavorsky (Russian: Болеслав Леопольдович Яворский ; June 22, 1877, Kharkiv – November 26, 1942) was a Russian musicologist, music teacher, administrator and pianist.