UPDATE. Since January/February, I was using the beta MP3tag for Mac trying to get a handle on how to use it efficiently. They have recently put it into full production. For me, it took a lot of reading on their forums, and playing around a lot, to learn how best to use it. It is a powerful editor and works well. Understanding the fields in the editor that get populated by the database, and how they translate in the Bluesound app’s categories proves a bit tricky. There are things that I have yet to figured out; like how to get the correct photo of the album cover to appear on both the editor and then the BS app; and some of the changes I make do not translate (I have yet to figure out why.)
For anyone with a classical music collection on the Vault (mine is fairly extensive) this editor is a “must have.” The vault’s software often puts the artist (the group or person playing the composer’s piece) in both the “Artist” and “Album artist” fields. So, unless the “Album title” field contains the composers name, you’ll never find it in a search or a category on the BS app. (Note that the “album artist” field should contain the name of the composer.) The “composer“ field is left blank, so nothing shows up under the BS app’s “composer” category. In addition, the BS software populates the “genre“ field using a wide range of broad categories and often incorrectly. The MP3tag software can correct all of this and, as I have come to learn, fairly easily. I have been having lots of fun making all these changes, and making the BS app much more efficient for my purposes. These issues hold true for genres like Jazz, so the tag editor works great for this as well.
All in all, I am extremely happy with both the MP3tag editor and the vault!