Lev Knipper piano sheet music of popular songs

Lev Konstantinovich Knipper (Russian: Лев Константинович Книппер; 3 December [O.S. 21 November] 1898 – 30 July 1974) was a Soviet Russian composer of partial German descent and an active OGPU/NKVD agent. Shortly after his birth, the family relocated to Tsarskoye Selo, then to Ekaterinoslav in 1910, and then Saint Petersburg in 1913. He was greatly influenced by his father's sister, the actress Olga Knipper (wife of the playwright Anton Chekhov), who encouraged his musical interests. He learned to play clarinet, double bass and various brass instruments, and taught himself to play piano out of a book.