Shostakovich: String Quartet No.16

Dmitri Shostakovich (1906-1975) – String Quartet No. 16 in B major (unrealized).

Shostakovich planned to write another String Quartet. He made an outline for No.16, but never realized it.
See also in this connection: Krzysztof Meyer (*1943) – String Quartet “Au-delà d’une absence”