Martin® Retro™ strings are crafted from a long-lasting proprietary nickel-based alloy blend that mellows quickly to a warm vintage tone that brings out the unique, woody sounds in your acoustic guitar.
Clapton's Choice Phosphor Bronze guitar strings have a distinctively clear, warm tone with a hint of brightness that can highlight the subtleties of a player's style. Live or in the studio, they deliver the performance expected by Eric Clapton. These new strings are available in light and medium gauged sets. "When I play acoustic guitar, whether in a studio or on stage, these Martin Strings are my choice. They deliver the sound that I demand."