Home > Articles > The Sound > A 21st Century Bluegrass Guitar From Oregon’s High Desert A 21st Century Bluegrass Guitar From Oregon’s High DesertWritten by David McCartyPosted on December 31, 2020The SoundFacebookTweetEmailPrintThe D-MA from Preston Thompson Guitars in Sisters, Oregon has almost no interest in impersonating a Subscribe or log in to read the rest of this content.