Question: The Piano Concerto No. 1 in B-flat minor, Op. 23 was composed by which Russian composer of the romantic period, some of whose works are among the most popular music in the classical repertoire?
Sentence (from "Symphony No. 2 (Rachmaninoff)"): Its duration is approximately 60 minutes when performed uncut; cut performances can be as short as 35 minutes.
Relevant evidence: No