A Duma (Дума in Ukrainian) is an epic poem of 16th and 17th century CossackUkraine. Historically, dumas were recited by travelling kobzars and accompanied by the music of a kobza. In mathematics, see epic morphism. ... The Reply of the Zaporozhian Cossacks to Sultan Mehmed IV of Turkey. ... A kobzar (kобзар in Ukrainian) was a Ukrainian wandering bard of Cossack times, who played a stringed instrument called a kobza to accompany the recitation of epic dumas. ... Kobza (кобза) is an Ukrainian traditional string musical instrument. ...
See also
Duma (http://www.encyclopediaofukraine.com/display.asp?AddButton=pagesDUDuma.htm) at the Encyclopedia of Ukraine.