Martin D-28 Billy Strings w/caseMartin D 28 Billy Strings Overview The Martin D 28 Billy Strings is a signature dreadnought built around the feel and response of Billys prized 1940 D 28, with thoughtful updates to match his fast, expressive playing style. At the core is a slightly shorter 25" scale length, which reduces string tension and gives the guitar a more relaxed, responsive feelideal for quick runs, bends, and dynamic flatpicking. Paired with a modified low oval neck and