For people who's used to modern music, what got you into classical music?

For me, it was Tchaikovsky’s Symphony No. 6. Before attending that concert, I had been to others, Brahms, The Four Seasons, and so on, but none of them really stuck with me. Even during the Tchaikovsky performance, I wasn’t exactly moved, just touched in a way — it’s quite heavy, after all. But the next day, my mind kept replaying the melody nonstop. That’s when I really started listening to classical music.