Beethoven’s first symphony premiered when he was 30. Schubert wrote his first at 16, and Mozart’s was composed when he was only 8. But Johannes Brahms, at 43, had yet to finish his Symphony No. 1, which he’d begun writing more than twenty years previously. A notorious perfectionist, he burned many of his early works and sketches; it was not easy living in the shadow of the giants before him. His many years of preparation were worth it—upon the work’s premiere in 1876, the Vienna press called it “Beethoven’s Tenth.”