The authentic piano sound and key feel make it easy to play this simple 88-key model any way you like. Yamaha's GHS (Graded Hammer Standard) weighted action has heavier touch in the low end and lighter touch in the high end, just like the hammers inside an acoustic piano. AWM (Advanced Wave Memory) sampling uses digital technology to record the sound of an acoustic piano. Slim and stylish form with a depth of less than 12 inches, the P-45 requires little space. Various P-45 settings can be changed with a single button. Hold down the "GRAND PIANO/FUNCTION" button and press the keyboard to change Voices, play demo sources, configure the metronome and more.