The P-45 features a graded hammer standard (GHS) keyboard. The feel of the keyboard gradually changes according to the register, so that it feels heavier when playing bass parts and lighter when playing treble parts. 

The piano also features a keyboard with a natural feel, with black keys that feature a matte finish for authentic piano playing close to that of an acoustic piano.

Recreates the real reverberation of a grand piano - The P-45 has improved on the traditional AWM synthesis to deliver real piano sounds. AWM is a technology that uses digital recordings of sources, such as actual instruments, and allows you to enjoy grand piano reverberation wherever you are.