The Yamaha P-35 has a slim, contemporary and compact design. Operating the P-35 is beautifully simple. For example, the Grand Piano button is easy to locate on the front panel and instantly restores the P-35 to the best acoustic piano voice. Just as on a traditional acoustic piano, the keys of the lower notes have a heavier feel while the higher ones are lighter to the touch. Together with the matt-finish black keys, the P-35 feels as good to play as it sounds. AWM (Advanced Wave Memory) sampling uses digital technology to record an acoustic instrument's sound. AWM Stereo Sampling creates a deeper, richer sound by using pairs of waveforms (L and R) captured with two microphones.