A slow chamber movement by this composer begins with the 2/4 melody (read slowly) “eighth notes B flat-D-D-B flat, quarter notes E-flat, D, C,” briefly switching to 3/4 in the third bar. This composer commemorated the violinist Ferdinand Laub with an E-flat minor Andante funebre movement in his third and final string quartet. A set of E major variations ends with the return of the theme from the opening “Pezzo elegiaco” in this composer’s two-movement (*) Piano Trio in A Minor. This composer, who arranged his first string quartet’s Andante cantabile for cello and orchestra, was commemorated by Rachmaninoff’s second Trio élégiaque. This composer’s string sextet Souvenir de Florence was written during a visit to Italy that also produced his opera The (10[1])Queen of Spades. For 10 points, (10[1])name this (10[1])Russian composer whose non-chamber works include Swan (10[1])Lake. ■END■