Press Record, then play your keyboard.
Home row A–' plays white keys, the row above plays the black keys. Z / X shift octaves.
Every Save or Export lands here. Click a session for the full breakdown.
Aggregated from every session you have saved.
Peak Notes is a browser studio for pianists — capture over USB MIDI or your computer keyboard, watch a live counter built for practice and screen recording, then export a Standard MIDI File, a silent counter video, or drop the take onto a glowing visualizer. Your history stays on this device.
Plug in a MIDI instrument such as the Yamaha P-145BT and it is detected automatically — it always plays and records. The source toggle decides whether the computer keyboard is also live, so switch to MIDI Device when you want typing to stay silent. Sustain pedal (CC64) keeps notes ringing under the damper.
Sessions are written as SMF Format 1 at 480 PPQN with a dedicated tempo track. Held notes are closed automatically and leading silence is trimmed so the roll starts on your first note.
A large live counter, notes per second, peak NPS, elapsed time, and a Focus view sized for the room. Pause preserves silence in the timeline. Dark and light themes are included.
The QWERTY layout follows the familiar Virtual Piano arrangement, and every key can be rebound from the settings panel. Preferences persist between sessions.
The home row plays white keys left to right starting at Middle C, and the row above holds the black keys in their natural gaps.
Web MIDI needs a Chromium-based browser such as Chrome or Edge,
served over localhost or HTTPS. Computer-keyboard
input and audio work everywhere. Piano, Rhodes, harpsichord, and
guitar samples come from the Musyng Kite soundfont via
midi-js-soundfonts
(CC BY-SA 3.0).
Go back to save the take, export MIDI, or render a video.