WONDER #1142: Why Do Pianos Have 88 Keys?
Question 1 of 3
What major piano manufacturer moved to 88 keys in the late 19<sup>th</sup> century, leading many other piano manufacturers to do the same?
- Stuart and Sons
Question 2 of 3
The Stuart and Sons “super” grand piano has how many extra keys?
Question 3 of 3
The black keys on a piano represent what compared to the white keys?
- half steps
- all of the above
Check your answers online at https://wonderopolis.org/wonder/why-do-pianos-have-88-keys.