In this video I did a complete Yamaha S90 Workstation sound demo, and I kept it 100% about the audio. No talking over the patches, no hype—just pure factory sounds so you can judge with your own ears (best with headphones or studio monitors). I ran through the core categories people actually care about when they’re buying used or comparing boards: acoustic/electric pianos, classic keyboard tones, organs, guitars, basses, strings, brass, reeds/pipes, leads, pads, drum kits, and special FX. The big question here is the one I see all the time: “Does the Yamaha S90 really sound better than the Montage 8?” I’m not forcing a verdict—I’m giving you the full palette so you can decide what feels more musical to you. The takeaway is simple: the S90 still has that classic Yamaha workstation character, and when you hear it across all categories (not just one piano patch), you can tell whether it fits your playing, your productions, and your workflow.