Thx.., but the only thing that can be done in the case of the DGX-670 would be for Yamaha to unlock those via an OS update (if it’s even possible). The 670 cannot load sample data. All of those voices are likely in your Genos already, but probably only accessible via style editing/recoding. Go into a style and change the sound to a chord part. You’ll likely see under the LEGACY tab the option to select XG/GM/GM2 voices. If you record a style from scratch you’ll also likely see these sound categories within the LEGACY tab.

Sqk