Is the piano a string instrument or a percussion instrument?
The piano is technically a percussion instrument even though it uses strings. And the reason why this is, is because it uses hammers to strike the strings. Much like a drummer hits a drum head with a drumstick, or a vibraphone player hits the vibraphone with a mallet, the piano is viewed as the same thing. And in an orchestra setting or a group like a rock band or a jazz band, the piano is considered part of the rhythm section, and so in that case it’s actually designed to be percussive in nature and keep rhythm.