Since D'Addario introduced Phosphor Bronze acoustic guitar strings in 1974, they've been synonymous with warm, well-balanced tone—and since we developed this set exclusively with Taylor Guitars, there has been no better option for the GS Mini Bass. XT Taylor Mini Bass acoustic strings are constructed with a multi-filament core, phosphor bronze wrap wire, and an advanced corrosion resistance coating, affording tonal versatility with added resilience, excellent for a wide range of acoustic bass styles. This 37-90 Custom Light gauge set is made specifically for the Taylor GS Mini Bass and will also fit with other similarly-sized instruments.