Impromptu for Viola and Piano.
Sans op.
The author’s manuscript is kept at the Moscow Central State Archives in the fund of Vadim Borisovsky, a famous viola player and teacher, member of the Beethoven Quartet. In 2003, Borisovsky’s widow, Aleksandra De-Lazari, submitted Shostakovich’s manuscript for state storage along with other items from the family archive. According to the historical reference to inventory 1 of Borisovsky’s fund, compiled by Yelena Tsapova, “the description of the fund’s documents was done at the Moscow Central State Archives, at the Centre for the Storage of Documents from Personal Collections in 2013”. It turns out that researchers had had access to Shostakovich’s manuscript for several years, but had not paid any attention to it.
The content of Shostakovich’s manuscript from Vadim Borisovsky’s fund left me with no doubt that it was one of the composer’s unknown compositions—a miniature
for viola and piano. The author did not indicate the instruments to be used, but the viola clef in the solo instrument part and the
spiccato and
pizzicato articulation marks excluded any other interpretation. It turns out that the great Sonata for Viola and Piano, Op. 147 (1975), which was considered the only example of this combination of instruments in Shostakovich’s oeuvre, had a predecessor.