"Billy Wilson", also known as "Ace of Spades", "Little Billy Wilson" or "Old Bill Wilson" is an American reel in A Major. It is played in standard or AEae fiddle tunings. The part are played AAB (Eck Robertson), ABC (Silberberg) or AABBCC (Kuntz, Phillips). It is a latter part of Texas fiddler Eck Robertson's "Brilliancy Medley". It was printed in Phillips' Traditional American Fiddle Tunes, vol. 2 (1995) and Silberberg's Tunes I Learned at Tractor Tavern (2002). It was recorded by Rafe Stefanini on Glory on the Big Spring, The Ill-Mo Boys on Fine as Frog Hair (1993), Eck Robertson (1930) and The Critton Hollow Stringband on Poor Boy (1979).