A grand piano’s large body and complex structure create a range of resonances that give it a rich, detailed and unique sound. Casio’s original Multi-dimensional Morphing AiR Sound Source accurately generates the unique resonances of a grand piano. The Privia PX-S3100 delivers a vivid, harmonically rich sound thanks to the dense overtones of each individual string for all 88 keys tuned for its unique speaker system. The expressive changes in timbre created by the instrument’s response to key velocity and temporal change are finely controlled, giving you the freedom to truly express yourself in all styles of playing, from soft & nuanced to dynamic and powerful.