Show HN: Wabetune – Intonation Analyser · Strings · Winds · Brass · Voice

A tuner answers for the note you play now. wabetune measures how in tune you play and keeps the measurements, session after session, so the notes that drift show up as a pattern.

Eight tuning systems Fifteen sessions free No account until you save The audio never leaves your browser

For any instrument where you place the pitch: a violin, a cello, a horn, a flute. The piano is out, because the note is decided before you arrive.

Same recording, judged twice. Against equal temperament this F♯ is on the note. Declare D major and it sits fourteen cents above where the third of the chord belongs: a pure third is 13.7 cents under the piano's.

That is the number a quartet tunes to. A tuner will say the note is fine. Your cellist will say it beats.

The top D stays sharp in both. No key helps with that one.

An F♯ above a D has three defensible places to be.

wabetune reads the spread of your own repetitions first: that number holds whatever system you are playing in.

The twelve numbers, degree by degree, including the two we refuse to guess.

Improving is a question about weeks, and a tuner answers about now. The graph puts a line for your average deviation and bars for the time you played on one axis. The dashed line is today's tolerance, so you judge old sessions against where you are headed.

A quartet reads a new piece. Bar twelve, a D major chord, and it beats. The viola says the cello is low, the cello says the F♯ is high, the second violin is sure it is the viola, and the first violin moves anyway. Twenty minutes later the chord still beats and nobody knows who moved.

Leave Spectrum listening on the stand through the rehearsal. It hears the four of you at once and puts beside every note how far it is from the tuning system you agreed on. Under the picture it names the chord, and shows how far each note is from the pure interval over the root that was actually played.

The F♯ a tuner calls twelve cents flat is four cents high against the cello's D. That is the note that moves, by four cents, and the chord stops beating. The argument takes as long as reading two numbers.

The map is for practising on your own, one note at a time. Spectrum is for playing together, and records nothing. On the free plan it listens two minutes a day; after the €4.99, for as long as the rehearsal lasts.

Choose a window in the statistics (a day, a week, a month, a year) and share it as a PDF. Send it before the lesson and spend the lesson playing.

On a phone it opens the share sheet; on a computer it downloads. The tables leave out sessions measured under other settings and say how many.

Everything the instrument does, for fifteen sessions, and Spectrum two minutes a day. Nothing expires.

Nine of the twelve rows are the same on both sides. After fifteen sessions the instrument works as it did. The €4.99 buys the sessions and the archive without a limit, and Spectrum for a whole rehearsal.

Written out, so you know what it measures.