Custom signature ‘bluegrass’ 6 string set for acoustic guitar from Retro series that was designed in cooperation with Tony Rice, an American legendary bluegrass musician and guitarist. This set delivers sweet, lush and clear sound, perfect for bluegrass, Americana and similar genres, and allows the natural woody sound of the guitar to stand out. It features strings made of the coveted nickel alloy called Monel which was discontinued in the 70’s. Gauges: .013, .016, .026, .034, .044, .056.