When I was first learning about classical music, 50 years ago, the scene was more streamlined than it is now. Beethoven was king, with Brahms and Mozart next in line, and Haydn slowly establishing himself. Mahler was the new kid on the block; Bruckner was largely unknown and mistrusted. If one wanted the full symphony orchestra experience in late romantic music, it was to Tchaikovsky that most promoters turned.