Detail 01
Light gauge
Identifies this MM12 set within the Martin Retro acoustic-string range.

Independent shopping perspective
MM12 Retro is Martin’s light-gauge acoustic guitar string set. The SOLID nickel/copper alloy blend is designed for less pick attack, leaving the instrument’s wood character less covered by the string response. Martin describes the result as both mellow and crisp. Its naturally corrosion-resistant wrap wire supports consistent tone over the set’s service life. For $9.99, it is the light-gauge choice in the Retro acoustic-string line.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Identifies this MM12 set within the Martin Retro acoustic-string range.
Detail 02
The alloy is intended to reduce pick attack and keep the guitar’s wood character audible.
Detail 03
The wrap wire is naturally resistant to corrosion.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. MM12 Retro is an acoustic guitar string set.
Martin describes them as mellow yet crisp, with reduced pick attack.