YEM is memory-intensive. When importing large third-party libraries (e.g., Celtic Harps, Grand Pianos), the software must convert WAV samples into proprietary Yamaha formats. On Windows systems with 8GB of RAM or less, V2.8.1 may freeze during batch imports.
: Improved Mono/Portamento behavior for instruments that support these upgraded functions. Legacy OS Compatibility : One of the last versions to officially support Windows 8.1 yamaha expansion manager v281 for windows 10 81 top
If you meant something else by "81 top," please clarify (keyboard model? 81 voices? 81 styles?). YEM is memory-intensive