Yamaha 4.3 octave honduras rosewood marimbaThe YM2400R is a 4. 3 octave rosewood marimba, basically the same instrument as the YM410, yet with a larger scale range. Having the same size note bars as the YM410 but with a larger scale range makes the YM2400R the perfect instrument for those looking to take the Marimba into more solo and small ensemble playing situations, as opposed to the more orchestrally suited range of the YM410. The 4. 3 octave range of the YM2400R makes it perfect for