MIDI Piano Visualizer: see the music while you play
Plug a MIDI keyboard into your computer and every note you play lights up on a piano on screen, with the chord name and the notes on a grand staff. Play G, B and D together and it names the chord, G, and writes the three notes on the staff.
It is built for music lessons: Student Mode puts your face camera and a phone camera looking down at the keys side by side, so a teacher can see your hands. You can also load a MIDI file and watch it play back, try Fun Mode for performance visuals, and on paid plans record what you play.
Setup guide · Plans · Mac app · Manual
Frequently asked questions
What is the MIDI Piano Visualizer?
The MIDI Piano Visualizer is a web app from Nathaniel School of Music that shows what you play on a MIDI keyboard as lit piano keys, chord names and staff notation, with camera layouts for lessons and recording.
Who is it for?
It is for piano students who want to see chords and notation as they play, teachers who give lessons online, and musicians who want to record piano videos with the notes on screen.
Is it free?
Yes, there is a free Play plan with chord detection, staff notation and Student Mode. Paid plans add more: Learn is ₹399 a month, Create ₹999 a month and Teach ₹1,999 a month.
Does it work with my digital piano, phone or Mac?
If your piano sends MIDI over USB or Bluetooth, it works. Chrome and Edge read MIDI keyboards directly, and Safari and Firefox fall back to an on-screen keyboard. A phone can join as a second camera by scanning a QR code, and a Mac app for Apple silicon is included in the Create and Teach plans.
Who made it?
The MIDI Piano Visualizer was made by Nathaniel School of Music, founded by Jason Zac.