Really enjoying the ease of use of SongKong since I bought it. However, one or two curiosities where it doesn't seem to pick up all the MusicBrainz tags. For example, see the attached pic. This illustrates an album which has been tagged with SongKong and then checked against Picard. As can be seen, it is missing some tags - in particular three performer tags.
BTW the MB Work Id tag is not different - just that SongKong generated two records and Picard joins them with a semi-colon.
BTW2 I think the Picard approach of green for new and amber for changed is more intuitive than the other way round, which is used in the "view metadata as spreadsheet" (which I otherwise like!).