Hi Steven,
if you don't mind to add another two optional custom tags - "Encoded by" and "Remixed by" in the list in preferences. Then all tags would correspond with the favorite tag editor Tag Scanner (not only mine). Then little scroll bar in comment field in the edit window would be fine. Finaly possibility to send folder (from Artwork view) to external application (e.g. external tag editor). Now it works but the application opens as many times as the folder contains files.
The latest improvement with clickable explorer location in player window is very useful, but in selected track mode is missing visible location. This empty place is still clickable and works. I think there should be URL to folder of selected album.