Check out our interview with Xylem custom guitars and basses, a luthier based in Colorado. They also repair guitars. All Xylem custom bass guitars and guitars are fully tailored to your musical tastes and preferences. Xylem luthier Anthony Olinger will help you design and develop the perfect instrument for you by combining his expertise and experience with your idea of the perfect bass or guitar. The result will be a one of a kind instrument that fits you better than any other.