Pianocio

Pianocio is an interactive piano practice companion — explore keys, chords and scales on a circle-of-fifths wheel, build chord progressions with Extend mode, train your ear, play along with songs, and preview it all in Guitar mode too, all in one place. Built with the help of Claude AI.

Look for an install icon in your browser's address bar, or an "Install Pianocio" / "Add to Home Screen" option in your browser's menu — Pianocio then opens from its own icon, with the Grand piano and Guitar sounds, and your songs, all still working without a connection.

Tap the Share icon in your browser's toolbar, then choose “Add to Home Screen”. Pianocio then opens from its own icon, with the Grand piano and Guitar sounds, and your songs, all still working without a connection.