High-end Tyros or Genos styles (they will either sound like static or freeze the keyboard).

Many musicians create custom styles using MIDI software and share them for free. Searching for "Yamaha keyboard style blog" or "Styles for PSR-SX" often yields high-quality files that the E473 can read. 4. YouTube Communities

: This community is a goldmine for free Yamaha styles. You can find collections organized by keyboard model, including a curated selection for the PSR-E463 and E473 .

For your Yamaha PSR-E473, you can find a variety of free high-quality styles—often referred to as "deep stories" when they evoke a specific mood or atmosphere—through official Yamaha sources and dedicated community forums. Official Yamaha Downloads