Yamaha MegaVoices (multiple layers per note) do work on Medeli. Replace them with standard GM2 or Medeli native voices:
Before we dive into the conversion process, let's briefly discuss what Yamaha styles and Medeli AKX10 are. how to convert yamaha styles to medeli akx10
Here is everything you need to know to bring Yamaha's legendary sounds to your Medeli hardware. Why Yamaha Styles Work on the AKX10 Yamaha MegaVoices (multiple layers per note) do work