There is yet another interface for browsing discography information from 'The Online 78 rpm Discographical Project' here on Honkingduck.
It's organized by artist, and all the artist's sides are listed together on the same page. There is a long list of artists and then each artist has a page of listings, like this one for Roy Acuff. (You see that Roy Acuff - Smoky Mountain Boys get their own page. That's because they have a different name than 'Roy Acuff'.)
I've set up a honkingduck site search in case you don't want to browse through 2700 artist pages. (This will well work once Google finished indexing the site.)
My goal is that you'll come across the pages in your usual web searching. The navigation is set up so eventually the search engines will find all 54,000 artists and you can rely on them to provide all the searching capability you need.