What Are the Different Kinds of Weighted Keys on Digital Pianos?

You may have decided to purchase a digital pianoacoustic piano. The good news is that for a cheaper
instead of an acoustic piano for many reasons, suchprice this type of weighted keyboard comes close to
as availability of multiple tones, headphone playingapproximating the feel of an acoustic piano. The bad
capability, lower price, etc. But before you get one,news is that you will always be lacking that
make sure you like the feel of the keyboard action."momentum" feel on the keys of an acoustic when the
This is how the keys feel when being played. It all hasmomentum of the hammer bouncing off the string
to do with what kind of weighted keys the keyboardplays a part in bringing the keys back to a resting
uses.position.
If you want the feel of an acoustic piano, you will wantWeighted Hammer Action Keys
a weighted keyboard. Many digital pianos will emulateThese types of weighted keys come the closest to
the feel of an acoustic piano by using keyboardemulating the feel of an acoustic piano. Keyboards
weighted keys. They can do this in multiple ways.with this feature use a hammer simulating mechanism
Before we look at some of the different keyboardto give you the feel of a moving hammer. Some digital
weighted types, let's get a quick understanding of howpianos even use actual hammers, not just a simulating
an acoustic piano gets its "feel"mechanism. The big one that comes to mind is
An acoustic piano uses a hammer striking mechanism.Kawai's AHAIV keyboard action. With these weighted
When you press the keyboard keys it presses a lever.keys you not only get the weight and resistance on
The lever causes a hammer to strike the strings. Thethe keys, but you also get the feel of a hammer's
hammer then bounces off the string. The key returnsmomentum. Both features you get on an acoustic
to the resting position by the weight of the hammerpiano keyboard.
and levers. It's very natural feeling with no springs. ItOther Keyboard Descriptions
just uses the weight of the hammer and theBefore you buy a digital piano, you will come across
momentum from bouncing off the string.other phrases that describe the keyboard action. The
This type of feel is what digital pianos try to recreate.most common one will be Weighted Scaled Hammer
So let's look at the three types of keyboard actions.Action. So what does the word "Scaled" mean? It
Non-Weighted Keysmeans that the keys emulate the feel of an acoustic
Non-weighted keys are very light feeling. They aregrand piano by being heavier on the lower notes and
what organs and synthesizers use. Obviously, they dolighter on the higher notes.
not have the heavy, weighted feel that you get fromOn an acoustic grand piano, the lower notes are a little
an acoustic piano. Since there is little weight and noharder to press than the higher notes. So to emulate
hammers using momentum from bouncing off a string,that feel, digital piano manufacturers will make their
these non-weighted keyboards must use springs tolower notes heavier. Other phrases you will see that
bring the keys back to the resting position. The upsidedescribe this same thing are "Graded Hammer Action"
to this is that the keys are easier to press allowingand "Progressive Hammer Action." Also, look for the
quick movement over the keyboard. The downside isphrase "weight gradation" to indicate keys are heavier
this feels nothing like an acoustic piano. Also, whenin the lower end and lighter in the high end.
keys so easily press down it is easier for your fingerConclusion
to barely graze a key that you had no intention ofEach manufacturer of digital pianos seeks to make
playing, making a noticeable mistake in yourtheir keyboard feel as close to an acoustic piano as
performance.possible. They will each do it in a different way based
Weighted Keyson their technologies and patents. Every piano player
These keys have a weight in them to give them somewill have their opinion about which digital piano feels
substance. The weight makes them harder to press"the best." If you want the feel of an acoustic piano
down, just like you'd expect on an acoustic piano. Theyyou now know to narrow your list of digital pianos to
come close to feeling like an acoustic piano. However,those with weighted hammer action. But the only way
they do not have any type of hammer mechanism into find out if you like the feel of a particular digital piano
them, so in that aspect they will not feel like anis to play it.