Martin MTR13 Tony Rice Bluegrass Acoustic Guitar Strings (Medium) (Discontinued)
- Gauge: Extra Light (.013 to .056)
- Material: Phosphor Bronze
- Coated: No
The MTR13's were on our recommended list for Medium Gauge Acoustic Guitar Strings from February 2020 until February 2021.
The MTR13 Retro is meant to reproduce the acoustic tone of the 1930's, inspired by bluegrass player Tony rice.
These are crafted from Monel, a nickel/copper alloy that once was the main component of guitar strings, until companies found more cheaper alternatives like steel.
With so many guitars that duplicate vintage designs, it only makes sense for manufacturers to match these vintage designs with strings that are equally old-school inspired. The MTR13 is exactly that, but with modern reliability and longevity.
Note that you should probably look for a different string set if you are looking for a more modern voicing.
Unfortunately these are no longer available in stores, but you can see our current recommendations in our guide to The Best Acoustic Guitar Strings.