I have been using TuneBrowser over a year now, and last week purchased the full edition finally.
It is my understanding that the music folder on my window desktop PC is set as the default library folder upon software installation and it can be changed later whenever necessary, but I still don’t know how to change the main library folder from music directory if I want to.
Please open preferences dialogbox, select tree item “Basic” (top of tree), then check the right pane “Registering tunes” – “Music folders” (top of items).
When click this item, a button “…” will be shown at right edge, please click this button. Then, you can modify music folders.