How to tune a tin whistle
- 1
Warm it up first. Play a tune or two before you look at the needle. A cold whistle reads flat and climbs as it warms, often by 10 cents or more, so tuning straight out of the case sets you up to be sharp ten minutes later.
- 2
Blow at your real playing pressure. More air means higher pitch, and it is very easy to nudge a note into the green band without noticing. Play the note the way you would play it in the middle of a tune and believe what the needle tells you.
- 3
Check three notes, not one. Play the bottom note with all six holes covered, the note with the top two holes covered (A on a D whistle), and the octave of the bottom note. The check panel under the tuner keeps a running average of all three.
- 4
Move the head, not your breath. If all three lean sharp, pull the head out a millimetre or two. If they lean flat, push it in. Re-check after every small move; the slide is more sensitive than it looks.
For glued heads, one-piece whistles and the rest of the detail, read the full guide on how to tune a tin whistle.
Why some notes read a little off
Even a good whistle will not put every note dead centre. Six fixed holes have to serve two octaves, so the maker voices the whistle as a compromise and a few cents either way on single notes is normal. The cross-fingered C natural and any half-holed note are the usual suspects, and the second octave drifts sharp if you push it with more air than it needs. None of that is something the slide can fix, which is why you tune to the average and then shade individual notes with your breath.
If one note sits far away from the others, check the fingering before you blame the whistle. A finger that is not quite sealing a hole will pull that note flat and make it sound airy. The tin whistle finger chart shows every fingering, including the cross-fingered and half-holed ones.
Tuning with other musicians
At a session, tune to the instruments that cannot move: accordions, concertinas and the piano. Ask the box player for an A and match it, or set the reference pitch above to 442 if that is where their instrument sits. When you tune by ear, play the reference tone and your note together and listen for a slow wobble in the sound. That wobble, called beating, slows down as the two pitches get closer and disappears when they match.
Once you are in tune, put the time into tunes. The easy tin whistle tabs are a good place to start, and the metronome for Irish music has presets for jigs, reels and the rest.
Tuner questions
How do I tune a tin whistle that has no tuning slide?
Most budget whistles, like the Generation and Feadóg, have the head glued on. You can usually free it by standing the head end in hot (not boiling) water for a minute and twisting gently, then it slides like a tunable whistle. Until then you tune with breath: a little more air raises the pitch, a little less lowers it. That covers small corrections, but lean on it too hard and the tone suffers.
Should my tin whistle be tuned to A440?
Yes. Nearly every modern whistle is made to play at A = 440 Hz, and so are most instruments you will meet at a session. Some accordions and older concertinas sit a little higher, around 442. If you play with one of those, set the reference pitch to match it, because the box cannot be retuned and you can.
Why does my whistle read flat when I first start playing?
Because it is cold. Pitch rises as your breath warms the tube, easily by 10 cents or more over the first few minutes. Play a couple of tunes before you tune, otherwise you will set the slide for a cold whistle and be sharp by the second set.
Does this tuner work for low whistles?
Yes. Choose Low D and the tuner expects a bottom note of D at about 294 Hz. Low whistles are quieter than high ones, so hold the phone or laptop a little closer, and give the bottom note a steady, relaxed breath.
What are cents?
A cent is one hundredth of a semitone. On a single sustained note most people cannot hear a difference smaller than about 5 to 10 cents, so anything inside the green band, 10 cents either side, is in tune for playing purposes.
Is my microphone recorded?
No. The pitch is calculated in your browser from the live microphone signal. Nothing is recorded, stored or sent to a server, and the microphone switches off when you press Stop or leave the page.