This handwritten score is the beginning of Rachmaninoff's art song "An Excerpt from A.Musset" ("Отрывок из А.Мюссе" / "Loneliness") Op 21 N6
Interesting reading:
Read Rachmaninoff's memories as dictated by the great composer himself and put together by Oskar von Riesemann in his book from 1934 "Rachmaninoff's Recollections"
Here you can find our unique DICTION TUTORIALS for some of Rachmaninoff's most famous art songs https://www.russian4singers.com/rachmaninoff