In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The P250 features three levels of Yamaha CFIII Grand piano stereo samples for dynamic selection according to your touch on the keyboard. The result is a delicacy of tone and expression that emulates the experience of playing a real piano. And to give the P250 an even more richly detailed sound, note off samples, string resonance samples and sound board samples simulate the acoustic interaction between different notes.