Request a new feature to add to Muso, or vote +1/-1 for anyone else's suggestion. Even just a few votes will get it looked into (just one possibly not).
OK these changes in 2.6.29:
- Lyrics is now exported as one of the "dynamic" tags, as it is one of the values changed outside the database edit view.
- On exporting static tags only store BONUS if it is ticked or exists in the tag and needs turning off, i.e. do not create unneccesary 0-value tags.