Yamaha 4.5 octave honduras rosewood marimbaThe YM4900A is a 4. 5 octave rosewood marimba that has professional width note bars. Vertcally thinner and Horizontally wider note bars spread the vibrations over a larger tone generating surface, pulling out a more complex, focussed and warm spread of harmonics from each note. Professional spacing combined with top grade rosewood makes the YM4900A a marimba to be reconned with, posessing a beatiful tone and a range that can easily cope with most