Sixty-one keys cover most pop, songwriting and a first year of lessons. Piano repertoire runs off the end of them, which is when 76 or 88 becomes the question — but the action matters more than the count.
What runs out first
On 61 keys, the left hand runs out of bass before the right hand runs out of treble. That happens in classical repertoire long before it happens in pop.
Why the action matters more
A weighted hammer action changes the physical resistance under the finger, heavier in the bass than the treble. That is what builds the touch that transfers to an acoustic piano. Touch sensitivity — volume changing with how hard you play — is a different thing, and every keyboard in this catalog that has it says so.
The practical middle
Seventy-six keys with a good action, or 88 keys in a slim portable body. Both exist in our digital piano and keyboard families, and both avoid the compromise of choosing between range and feel.
The questions players ask
What is the point of 76 keys?
It covers nearly all piano repertoire without the length, weight and price of an 88-key weighted instrument. The Casio CT-S1-76 in our catalog is 1.14 m (4 ft) and 5.3 kg (11.7 lb).
Should I buy 88 unweighted keys?
They are a good keyboard and not a piano substitute. If the goal is learning piano, a weighted 61 would teach more than an unweighted 88.
Last reviewed 2026-08-18