Casio's new keyboard lets anyone play along to songs without ever hitting a wrong note

This is due to the company's new Feel Sync technology.

By Lawrence Bonk Nov. 2, 2026 2:41 pm EST Casio Add Engadget on Google: Google Discover

Casio just unveiled the CT-FS1 keyboard and it looks like a great entrypoint for budding musicians. That's because it comes equipped with the company's brand-new Feel Sync technology. This adapts the keyboard to any song, so the player can never hit a wrong note.

The tech works via a proprietary Feel Sync app. Basically, people upload any song they want into the app and the algorithm analyzes the content and ensures the keyboard will always be in key. This even works on complicated songs with tons of key changes and various bridges and the like.