The Yamaha TRB1005J 5-String Bass Guitar, Natural features a Maple/Alder body, Maple neck, Solid Brass bridge and Rosewood fingerboard. The Yamaha TRB1005J has been developed to cover a low tonal range with a 5th string (low B), which could not be reached by orthodox 4-string bass, making possible for advanced players to increase improvisation and expression. The TRB1005J also has a beautiful quilt maple top and solid alder body, giving it equally good looks and tone.