SONYK Open the app
Sonyk › Learn Keys
Learn Keys

Turn any track into a lesson.

Load a track, press LEARN, and its melody becomes a note highway you play along to — on the on-screen keys or your MIDI keyboard. Hum a line and Sonyk writes it down, in key.

Try it free in your browserDownload Sonyk on the App StoreFree to play — every instrument, the DJ decks, up to 10 tracks. No card, no install in the browser.
The Sonyk keyboard with a note-highway lesson scrolling above it

What’s inside

Play-along note highway

Extracted melodies become correctable lanes: fix a wrong note in the roll, then practise it.

Hum it, sequence it

Sing or beatbox into the mic and it lands as notes on the grid, quantised and in your key.

Real instruments

Sampled grand piano, solo violin (arco and pizzicato), electric guitar and bass with a strings neck, plus every synth.

Chords mode

Voice-led degrees with a key chip — the whole app stays in key, and Sonyk suggests one from MIDI.

Questions

Do I need a MIDI keyboard?

No — the on-screen keyboard is multi-touch and velocity-aware. Any class-compliant MIDI keyboard works too.

Can it teach a song from my library?

Load the audio track, press LEARN: the melody is extracted on the device into a lesson you can edit.