This is a common question. Sometimes you will see pianos with more keys, (as in the Bosendorfer Imperial and Stuart & Sons concert grand pianos) but most of the time they have less. Is this something to be alarmed about? Let’s explore this subject.
The original design of the piano evolved from the Harpsichord which had about five octaves of keys. Throughout Beethoven’s life, the piano evolved in its robustness as well as the keyboard range. He demanded more out of the instrument in regards to dynamics utilizing techniques that simply outgrew what pianos of the time were capable of producing.
By the middle of the 19th century, pianos typically had 85 keys. By the end of the century, pianos began to emerge with the now standard 88 keys. It wasn’t really until the late 1880s when 88 keys became standard on pianos.
So if you have a piano or a keyboard with less than 88 keys is it something to worry about? It really depends upon the music you are playing. If you’re playing very old music – that was originally written for the harpsichord or early piano – it won’t be an issue at all. However, if you play a great deal of 20th century music, then you might want the full 88 keys but it really isn’t a deal breaker since these keys are used sparingly.
Much like the sostenuto or middle pedal, 88 keys are a late development in the the evolution of the piano and not necessarily something you absolutely need unless you’re playing a great deal of relatively modern music.
Thanks again for joining me Robert Estrin Robert@LivingPianos.com. Please keep those questions coming in!