Write a 5-sentence piece that uses Sebastian Bach’s 2026 tour and new-music mindset as a case study for how veteran rock artists balance nostalgia with innovation. In one sentence, contrast live performance choices (no backing tracks on stage) with studio production trends in the streaming era. Include a quick explanation of why audiences still crave new material alongside classic hits. End with a thought-provoking question about the future of live rock shows. Keep the tone clear and engaging for a general audience.