Precision tuning in every temperament

Fine Tuna

Precision tuning for keyboards, plucked instruments, strings, winds, and brass, in the temperament you need. Which Neidhardt? 1/4-comma meantone with custom accidentals? A=392? 430? 565!? Fine Tuna's got you covered.

Fast, responsive pitch detection, powerful temperament tools, and displays designed for musicians.

Google Play StoreComing soon

Meet the tuner

Tuning

16 built-in tuner views, or customize your own.

Temperaments

40 built-in temperaments, or define your own.

Explore

Compare temperaments with the keyboard or Temperament Explorer.

Fine Tuna Frame + Strobe tuner on Android actively listening to an organ note at D5, 587 Hz and -1.5 cents.

A tuner that listens like a musician

Clarity where other tuners lose the note.

Fine Tuna separates a stable musical pitch from the noise, overtones, and changing envelope around it. That makes the display unusually readable on instruments that are difficult to hear electronically.

Respond quickly, without chasing the attack

Fine Tuna finds the stable musical pitch through fast attacks, noise, overtones, and changing envelopes—even on difficult instruments.

Make the display yours

Strobe shape, colors, opacity, geometry, harmonic lanes, pitch washes, and light or dark appearance are all customizable.

Keep the musical context

Temperament, transposition, accidentals, reference pitch, and display choice stay connected while you tune.

Customize the display

See pitch the way you want.

Move from a calm frame to a precise ring strobe, a pitch bar, harmonic analysis, or recorded review. Fine Tuna’s views share one tuning engine, so changing the picture never changes the musical answer. Some examples of the available views:

Fine Tuna Frame + Strobe display on Android actively tuning an organ note. — Frame + Strobe
Read direction and distance at a glance, then use the motion to settle precisely.

Fine Tuna Tuner Gallery on Android, showing enabled displays including Frame, Pitch Bar, and Strobe. — Tuner Gallery
Browse the display families and choose the view that suits the instrument in front of you.

Fine Tuna Harmonic Waveform display on Android showing six organ partials around D5 at 587.1 Hz. — Harmonic Strobe
See the note and its upper partials together, especially useful for complex tones or tuning 4′ organ pipes.

Make it yours

Every useful detail is adjustable.

Choose stripe, ring, or wave strobes, a pitch bar, or a precision band that zooms in on just 5 cents around the target. Move the readout; adjust colors, opacity, geometry, and harmonic lanes; and choose and light or dark appearance.

Five display families: Frame, Pitch Bar, Strobe, Polyphonic, and Review.

ReadoutNote, cents, frequency, reference, and stretch adjustment.

MotionStripe, ring, wave, and harmonic strobe behavior.

AtmosphereColor, opacity, and contrast.

PlacementPut the information where your eye works best.

Fine Tuna searchable temperament library on Android, with built-in temperaments listed. — **Find your temperament**Search, favorite, and choose from 40 built-in temperaments, or create your own.

Fine Tuna Temperament Info for Corrette, with the source facsimile visible in context. — **Read the source**Keep the system’s definition and documentation close at hand.

Temperament Explorer

Understand the tuning before you play it.

Choose from 40 built-in temperaments—or define your own. Study a temperament by itself or compare it with another. Inspect fifths, step sizes, ratios, deviations, and pitch spellings. Listen to chord progressions in any temperament and see how its character changes in every key.

40 built-inCustom temperamentsCompareTransposeListen by key

Search and favorite the systems you use, sort them by name, year, or type, and keep their sources close at hand.

Notation that follows the music

Read pitch in the language you use.

Choose note names and octave conventions independently. Fine Tuna carries that choice through the tuner, keyboard, temperament tools, and passage review.

LettersGermanDutchSolfègeScientific or Helmholtz

Fine Tuna Note Notation settings on Android with German names and Helmholtz octaves selected. — **Set your notation**German names and Helmholtz octaves selected in Appearance.

Fine Tuna Android keyboard using German names and Helmholtz octaves, with a C major chord sounding. — **Hear it on the keyboard**The selected notation stays visible while you play.

A keyboard built for listening

Hold the reference. Hear the difference.

Fine Tuna’s keyboard uses the same active temperament, reference pitch, transposition, and accidentals as the tuner. It can be a pitch source, a chord partner, or a laboratory.

Fine Tuna Android keyboard with its current menu bar and a C major chord sounding. — **Make the keyboard yours**A mapped layout with a sampled sound, active temperament, and reference pitch in view.

Just Intonation Mode

Pick a reference pitch and tune notes pure against it. Experiment with “barbershop” dominant sevenths or adjust each locked note’s volume.

Temperament Compare Mode

Choose two temperaments and flip the keyboard between them to hear differences immediately.

Messa di voce

Practice against sustained chords with individual notes swelling and fading.

Sampled or synthesized

Choose among pure waveforms, synthesized instruments, or sampled flute, clarinet, trumpet, or organ sounds.

Stretch Tuning

See the curve behind the tuning.

For instruments whose inharmonic partials make pure octaves sound wrong, Fine Tuna can calculate a stretch-tuning curve based on the specific instrument. Choose among several stretch curves—clean 4:2 octaves, 8:2 double octaves, or more advanced algorithms like Minimum Entropy, based on work by Haye Hinrichsen.

Keyboard profilesFull-spectrum evidenceMultiple curves and strengths to choose from

After the note is over

Review the phrase, not only the instant.

Live feedback is just one way to listen. Record a passage and Fine Tuna maps its intonation over time: a timeline of every note, a per-note report, and a pitch map—with playback at full or half speed, note by note.

History & Pitch SpectrogramFollow pitch movement, strength, and continuity as it unfolds.

Passage ReviewReplay a recording with a timeline, note report, and pitch map.

Passage Review Timeline on Android, scrolled to a selected 4.6-second D-sharp/E-flat note in a real 11-note harpsichord passage. — **Timeline** Every note of the phrase, in time, tappable and replayable.

Fine Tuna Passage Review Note Report on Android showing 11 notes recorded from a harpsichord passage. — **Note Report** Duration, average cents, and how much of each note stayed within ten cents.

Fine Tuna Passage Review Pitch Map on Android showing the measured cent spread of 11 notes. — **Pitch Map** The whole passage’s intonation organized by pitch. Change the temperament or A4 to see where you land in any system.

The musician behind Fine Tuna

Built by someone who tunes every day.

Hi, I'm Jeffrey Grossman, a harpsichordist and conductor, and the man behind Fine Tuna. I tune my instrument every day, and as an early music nerd, I care a lot about temperaments and pitch systems! I want to give musicians the tools to decide for themselves what “in tune” means, and to understand what their choice of temperament does to the music. Happy tuning!

Android in active development

Help shape the Android release.

Fine Tuna for Android is being actively developed. If you would like to hear about testing or availability, email finetuna@jeffreygrossman.com.

Email about Android