How I turned a simple idea into a free tool to play piano online

I’ve always loved music, but I never had a real instrument or formal lessons. So I built Electronic Piano: a free, browser-based virtual keyboard to help anyone play, learn, and explore music.

It started as a personal experiment and now supports multiple languages, kids mode, and accessibility features for people without access to real instruments.

Try it here: https://pianoeletronico.com.br/en

What do you think? Any ideas to make it more useful?