Hi Flupke,
you probably have re-saved the Style just from the Style Selection display, but in this case you have to use the Style Creator:
- Adjust the Style tempo as usual. (Remember the new tempo or write it down.)
- Call up the Style Creator display via [MENU] > [Style Creator].
- In the "Basic" tab, check the Style tempo. (You can adjust the tempo here again, if needed.)
- Touch "Save". (Enter a changed filename to prevent the source file from overwriting, or use the same filename to overwrite the previous Style file.)
Note: You don't necessarily have to change and save the Style again. Most users would just save all changes to Registrations. (Make sure to have at least ticked Style, Tempo, Voice and Keyboard Harmony/Arpeggio (!) in the "Memory" dialog.)
Best regards,
Chris