Play any chord on your MIDI keyboard and Grand Sharp names it on the spot — the notes, the intervals, the inversions. Installable, works offline, best-in-class detection.
Triads, 6ths, 7ths, 9/11/13ths, sus, add, altered (7♯5, 7♭9…), slash chords and inversions — named the instant you play them.
See the exact notes and interval structure, plus alternate readings for ambiguous voicings. Single notes and two-note intervals too.
A real grand-piano sound as you play, with a clean keybed that lights up every note — on screen and from your MIDI controller.
No processing wait, no sign-in to play. Install it to your home screen and it runs full-screen, even with no internet.
Flip the note spelling between sharps and flats to match how you read. The keyboard relabels instantly.
Phone, tablet, laptop. Plug in a MIDI keyboard, or use the on-screen keys with a note letter on every key.
Pay $50/year below. Your unique key is emailed to you straight away.
Open the app, enter your email and key. It unlocks — tied to you, on up to 3 devices.
Connect your MIDI keyboard (or use the on-screen keys) and every chord you play is named.
A modern browser (Chrome, Edge or Safari) and, ideally, a USB or Bluetooth MIDI keyboard. No keyboard? The on-screen keys work too.
Your key works on up to 3 of your own devices — phone, tablet and laptop. It's tied to your email and can't be shared further.
Yes. Install it once and the detection runs with no internet. Your licence is checked online occasionally to keep it valid.
You'll be prompted to renew for another $50/year to keep using it.