Tune beyond equal temperament.
Professional chromatic tuner with real-time pitch detection, historical temperaments, and a Nixie-tube display. Not just accurate — educational.
Real-time pitch detection
Powered by the YIN algorithm — fast, accurate, and reliable.
Nixie Display
The detected note in a vintage Nixie-tube style — warm, readable, unmistakable. Note name, octave, and accidentals.
VU Meter
Classic analog VU meter showing cents deviation. IN TUNE (green), FLAT (left), SHARP (right).
Frequency Display
Exact frequency in Hz plus cents deviation. Configurable sensitivity from 5 to 50 cents.
Historical temperaments
Step out of equal temperament. Hear what Bach heard.
Equal Temperament
FreeThe modern standard: 12 equally spaced semitones. Every interval is a compromise, but it works in all keys.
Just Intonation
StudioPure intervals based on natural harmonic ratios. The major third rings pure, the perfect fifth is crystalline.
Pythagorean
StudioBuilt from stacked perfect fifths (3:2). Brilliant for melodic passages, wide major thirds. Medieval and early Renaissance tuning.
Educational Comparison
Interactive sheets showing deviation curves for each temperament. See how many cents each note differs, understand why it matters, and hear them in context.
Configuration
Customize the tuner for your instrument and needs.
A4 Reference
430–450 Hz. Standard 440 Hz or tune to your ensemble's pitch.
Transposition
Per-instrument override. Bb clarinet, Eb sax, F horn — all handled automatically.
Mic Presets
Optimized sensitivity for your instrument: flute, sax, clarinet, trumpet, voice, generic.
Sensitivity
5–50 cents range. Tight for final tuning, loose for practice.
Audio Recording
Record tuning sessions with synchronized pitch data. Every recording captures:
- Raw audio (full quality)
- Pitch data with timestamps (Hz, cents, note)
- Waveform visualization
- Session metadata (instrument, temperament, date)
All recordings saved to your Studio. Review intonation over time, track progress, share with your teacher.
Recording count shown at the top of the Tuner view for quick access.