Fresh 41+ Martin Bluegrass Acoustic Guitar Strings
Fresh 41+ Martin Bluegrass Acoustic Guitar Strings. Martin acoustic strings are one of the best selling acoustic guitar string brands. The sp phosphor bronze strings are offered in eight sets from extra light to medium gauge, plus a bluegrass medium set and a nashville high tuning set. These martin authentic sp strings are engineered with the performer in mind and they will always stand up to your rigorous practice and performance schedules.