Also, I'd like to make a suggestion.
I'd like to start by saying that I only use the Artist tag (not the Band the or the Album Artist tag), and there are cases where I have two or more artists or composers on this tag because a particular album is made by two or more people (it's a collaboration). I'm thinking about the soundtrack from The aristocats, for example, by George Bruns and The Sherman Brothers.
So, would it be possible, if the name is not found (as in this case, where the Artist tag is "George Bruns & Sherman Brothers"), for MB to look for an approximation of the name (and in this case, I'm thinking about the first part of the tag, i.e. "George Bruns").
I hope this idea sounds good and can be implemented easily! Thanks!