Оригинал: Cellosonate, Opus 21- Cello Part. Ferdinand Ries. Cello Solo sheet music. Cellosonate, Opus 21- Cello Part composed by Ferdinand Ries.
Превод: Cellosonate, Opus 21- Cello част. Cello Solo нотни листове. Cellosonate, Opus 21- Cello част, съставена от Фердинанд Ries. 1784-1838.