This is (in my ever so humble opinion) the best guitar/voice duo I’ve ever heard.
Duo: Sam and Ruby (2010): The Here and the Now
Related: Sam and Ruby sing This I Know (video from 2006)
Related: My Space page
“…From the blazing tempos of bluegrass and bebop to the lightning-quick flourishes inherent in Gypsy jazz and flamenco, many acoustic styles require guitarists to play single-note lines with speed and conviction. While most musicians are captivated by the ability to play fast, the guitar is a difficult instrument to play quickly… Keeping in mind that speedy lines sound best when played with clarity and good tone, the best way to start building your chops is to combine a regular practice routine that improves your technique with different approaches to picking and fretting…” From here, “Acoustic Guitar Magazine”.