Video demos
Borys Myronchuk plays: Alexandr Na Yun Kin. Kapitan ( Captain ).
Concert Improvisation on a Theme by I.Dunayevsky
Performed by Borys Myronchuk at Zhytomyr Regional Richter Philharmonic. Zhytomyr, Ukraine. 21 April 2015
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Available as sheet music for Bayan / Accordion: http://music.volod.com.ua/na_yun_kin_pieces_for_free_bass_bayan.php