Voices of the people in Mussorgskys opera Boris Godunov (according to the claviers manuscript)
Mussorgsky has made some changes in the distribution of separate phrases of voices of the people while creating the opera Boris Godunov. We can see the way of this changes and the versions that have never been mentioned in any document only in handwritten clavier. The Mussorgskys autograph lets us see the creation process in the formation of elaborate system of characters of the people.