Stimmung: Tuner & Intonation

Most tuners show you a needle. Stimmung teaches you to hear.

Stimmung is a serious pitch and intonation environment built for musicians who want to go deeper — beyond "in tune" and into the world of how tuning actually works.

Four precision tools, one focused interface:

Tuner
Real-time pitch detection with cent-accurate feedback. No clutter — just your pitch, your note, and the truth.

Drone
A clean, sustained reference tone generator for intonation practice. Pick your pitch, pick your octave, and train your ear against a rock-solid reference — the way serious players have always done it.

Compare
Hear any interval rendered in equal temperament, a historical temperament, or a mathematically pure ratio — and switch between them instantly. Stop reading about the difference between just and equal thirds. Start hearing it.

Explore
Step inside different tuning systems and hear what they do to harmony. Play through keys and hear why Baroque musicians chose specific keys for specific emotions — and why equal temperament traded that away for convenience.

Supported temperaments:
- Equal Temperament
- Werckmeister III
- Kirnberger III
- Vallotti
- Young I
- Young II
- Just Intonation (Major)

Additional features:
- Adjustable concert pitch (A4 = 440 Hz, 442 Hz, or any custom frequency)
- Sharp, flat, or automatic note spelling
- Instrument-specific tuner presets
- YIN-based pitch detection algorithm for precise, stable readings
- Additive synthesis drone engine for clean, musical reference tones
- Minimal dark interface designed for focused musical use
- Fully offline — no account, no tracking, no data collection
- All settings stored locally on your device

Stimmung is built for instrumentalists, singers, students, teachers, early music specialists, and anyone who believes that tuning is not a chore — it's a skill.