Musser incorporates Paduk, another exotic hardwood, in its design of marimbas. The 4.3 octave M240 Studio Grand has Paduk wide graduated bars set in the A2-C7 note range. The marimba includes aluminum resonators with a durable silver vein powder coat for a full rich sound. Studio Grand sets regally on a handsome wood concert frame. The M240 is a great first full size marimba for the serious student.