Bringing together a solid spruce top and sapele sides, an eco-friendly Richlite fingerboard, and built-in Fishman F1 Analog electronics, the Martin Performing Artist GPCPA4 Acoustic Guitar is built to deliver rich, traditional tone while meeting the demands of the modern player. Coming in two distinct finishes, the natural spruce and the company's signature shaded edgeburst, the full, organic resonance of this instrument pairs excellently with his flawless construction and aesthetics. Whether you're looking for that perfect workhorse acoustic for gigs or want something that will play beautifully around the house, the GPCPA4 is a surefire hit.