Many of Valentin Silvestrov’s smaller form works for piano are addressed to fellow composers both past and present, including Mozart, Schubert, Chopin, Purcell, Glinka, and Silvestrov’s contemporaries Leonid Hrabovsky, Alexander Knaifel, Arvo Pärt, and Andre Volkonsky. Pianist Alexei Lubimov, who has been performing Silvestrov’s works for more than half a century, curated this program as a musical dialogue with those …