Whenever Christian F. Martin IV hears a Martin guitar, whether it’s the timeworn piece Willie Nelson’s nearly strummed a hole through, or a customer nervously picking a D-300 that looks like fine art ...

NAZARETH, Pa. - Inside the Martin Guitar museum, the instrument's staying power is on full display. The famous guitars have made appearances at historical events, from Joan Baez playing a 1929 0-45 at ...