From the tip of the headstock to the bottom strap button, the Yamaha TRBX504 bass is a great value, but more than that, it's a great instrument Equipped with all of the features a committed student needs in order to advance on his or her instrument, the TRBX504 sounds and plays great, and offers a variety of sounds that are appropriate to a variety of playing styles Body TRBX features a sculpted solid mahogany body, with a mass-optimized 3D design for the