The new grand performance cutaway by Martin is a great synthesis of traditional Martin construction and tone with downright (Tayloresque) playability and aesthetics. The top is solid spruce for that warm Martin tone but the back and sides are made with Mutenye which is a west African tonewood, mostly from the Congo that is of the same genus as Ovankol and Bubinga. Amazing punch, depth and clarity. Try one!! -this is a staff review from skern at Sam Ash Indianapolis.