Analog Intuition

Music practice tool

Intune

Real-time intonation feedback for viola, violin, and cello. Play a note and watch your pitch trace scroll across a musical staff — green when you're in tune, red when sharp, blue when flat. Pause and scrub back to review any moment.

Download for Windows

Portable ZIP — extract anywhere and run. Includes a built-in simulator so you can try it without hardware. Pair with a Teensy pitch sensor when you're ready.

Download Intune v0.2.0 (ZIP)

Windows 10/11, 64-bit · ~1.5 MB · Requires VC++ Redistributable x64 · Source on GitHub

Quick start

  1. Download and extract the ZIP.
  2. Run intune_viz.exe (starts in simulator mode) or from a terminal: intune_viz.exe --simulate
  3. With a Teensy connected: intune_viz.exe --port COM3 (use your COM port).

Features

Three instruments Press I to switch viola (alto clef), cello (bass), or violin (treble).
Cents ribbon See exactly how many cents sharp or flat you are, with adjustable in-tune threshold.
BPM-scrolled trace The staff scrolls at your tempo — match your metronome or internal pulse.
Pause & inspect Freeze the trace and hover to read pitch and cents at any point in time.
Sharps & flats Accidentals appear between natural notes on the staff (e.g. C♯ between C and D).
Practice stats In-tune streak and accuracy percentage while you play.

Hardware (optional)

The full system uses a Teensy 4.1 with an I²S microphone for low-latency pitch detection. Firmware and wiring notes are in the GitHub repo. The visualizer works standalone with --simulate for testing and demos.

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