2-letter artist name means artist doesn't exist?
 

how are you supposed to search for "BT", (a well-known artist, definately a legitimate search query), when LW 4.04 won't let me search a 2-letter name to 'avoid network congestion'???

I know what you mean.....
I happen to be a fan of "the Fall"
OK I can search for that, but I get loads and loads of irrelevant results.
And that's why 2 letter searches are not allowed, you would get so much results, it would hurt network health
Or what about "The The"( a nice 80's band)
The only advice I can give,
Search for BT + album name or song- or part of songname.