Tuner & singing trainer
Online tuner: how to tune your guitar, bass and violin properly
Practising out of tune is like learning vocabulary with typos – your ear memorises the wrong pitch along with the note. That is why the tuner sits right above this text: free, in the browser, no sign-up. Allow the microphone, pluck a string, and the tuner works out which string you mean. The display tells you whether you are flat or sharp – measured in cents, hundredths of a semitone.
A rule of thumb from our lessons: always approach the note from below. Let the string go slightly flat first, then bring it up slowly – that way it stays stable, because the tuning peg does not slip back. New strings stretch during the first days and want retuning more often. That is not a fault, that is physics.
Built in are tunings for guitar (standard, drop D, half step down, DADGAD, open G), four- and five-string bass, violin, cello and ukulele. The reference pitch can be set from 432 to 444 Hz – the standard is 440 Hz, many orchestras play at 442 or 443. And once the strings are in place, the singing trainer is waiting next door: hold a note, sing it back, scales, intervals. Same microphone, same principle – except now you are the instrument.
Frequently asked questions about the tuner
How do I tune a guitar with the online tuner?
Start the microphone, keep “Gitarre Standard” (the default) and pluck the low E string. The tuner detects the string itself and shows whether you are flat or sharp. Turn the peg slowly until the needle sits in the middle, then move on to A, D, G, B and E. Finally check all strings once more – tuning one string slightly changes the tension of the others.
Which reference pitch is right – 440 or 442 Hz?
The international standard sets A4 = 440 Hz, which is the default here. Many German orchestras tune to 442 or 443 Hz because it sounds a touch brighter. For bands, lessons and playing along to recordings, stay at 440. The range here is 432 to 444 Hz so you can play along with any recording.
Does the tuner work on my phone?
Yes, that is what it is built for. Open the page in Chrome or Safari, tap “Start microphone” and allow access. Hold the phone close to the strings – an unplugged electric guitar is quiet. In noisy surroundings detection gets less accurate; a clip-on tuner that picks up vibration is the better choice there.
Is my microphone recorded or is anything stored?
No. The sound is analysed only in your browser to work out the pitch. Nothing is recorded, uploaded or stored. As soon as you press “Stop” or close the page, the microphone is off.
How accurately do I need to tune – is “roughly” enough?
A semitone has 100 cents. From about five cents off, most people hear a beating when two notes sound together, and in chords it shows up even sooner. Aim for the needle in the middle, under three cents off. A guitar is never perfectly in tune – frets and finger pressure shift the notes a little. That is normal.
What is the singing trainer and who is it for?
Four exercises for your voice: hold a note, sing it back, scale, intervals. You see straight away whether you are sharp or flat – just like the tuner, only with your voice. For beginners who are afraid of singing “off key”, and for instrumentalists who want to train their ear. Five minutes a day is enough.
Rather have someone listen?
Tuning, posture, first chords or your first clean sung note – in Munich we show you in person. Guitar, bass, violin or voice, in Obersendling or Allach.
Guitar lessons in Munich · Singing lessons in Munich · Article: 432 Hz or 440 Hz? · All mini-programs