Martin MM13 Retro Acoustic Guitar Strings - Medium 13-56 gio-rx • Tuning Machines: Open-Back Geared

• Tuning Machines: Open-Back Geared

Loaded at system startup or via updater software

A new ergonomic center clutch grip

Each disk slot features an illuminated disk indicator so you can see when disks are being accessed

great sound and playability

Martin MM13 Retro Acoustic Guitar Strings - Medium 13-56 gio-rx • Tuning Machines: Open-Back GearedMartin Retro strings are the real deal. Not an imitation. With Martin Retro strings, you get one tough set that offers true, consistent tone and sounds like nothing else on the market. Martins solid nickel copper alloy blend provides a reduced pick attack that allows the guitars tonewoods to be heard, not overshadowed. Martins proprietary Monel wrap wire is naturally corrosion resistant, so you can play them for a long time with nothing to get in the