Although an acoustic piano’s keyboard might look like nothing more than a bunch of on/off switches, in reality it allows for a range of volumes and timbres that you can achieve depending on how quickly or strongly you depress the keys. Second, it allows for more variation and musicality in the way you play a note. First, it helps you build finger strength while practicing (a spring-based action only minimally addresses this). Using a keyboard with weighted action is beneficial for multiple reasons. Graded, or progressive, hammer action takes that a step further by increasing the weight of the action as you descend to the lower notes on the keyboard. Hammer action uses a hammer mechanism like that found in an acoustic piano to replicate the feel. Semi-weighted action uses a spring to create the resistance you feel when pressing a key and its rebound when you lift your finger. With a digital piano, the closer the action is to that of an acoustic piano, the better. Weighted action: In piano lingo, action describes the way the piano keys feel when you press them.

88 keys: We consider only models that have 88 keys, which mimics an acoustic piano and allows the student to play any piano piece.

Casio 88 weighted key keyboard digital