Sergei Rachmaninov’s Piano Concerto No. 2, Op 18 is the kind of music that grips you by the collar and draws you into its world instantly, with its rich orchestral textures and dramatic fervor. I’ve loved it for years. Decades. Last weekend I attended the San Francisco Ballet’s Program 1, and was dazzled by the … Read moreIs Rachmaninov’s Piano Concerto No. 2 lowbrow?