A hurdy-gurdy is a musical instrument that has a special way of making sound. It's a bit like a mix between a guitar and a violin, but it's also completely unique all on its own! When you play the hurdy-gurdy, you turn a little crank, and that makes a big wheel inside the instrument spin around. As it spins, the wheel rubs against strings to make music.
But that's not all! The hurdy-gurdy also has buttons that let you change which strings the wheel rubs against. This lets you create different notes and different melodies! Some hurdy-gurdies even have a keyboard with buttons that you can play with one hand, while you're turning the crank with the other.
Overall, the hurdy-gurdy is a really special and unique instrument that works in a way that's unlike pretty much any other instrument you've ever seen or heard!