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A440 or Concert A or Middle A is the 440 Hz tone that serves as the standard for musical pitch. A440 is the musical note A above middle C (C4). The term literally means that the A above Middle C = 440 vibrations per second.
A440 is the standard for tuning forks which many people still use to tune their guitars. The tuning fork is gently banged on a reasonably hard surface (often one’s knee) and then the stem is pressed against the soundboard of the guitar. See our demonstration video on tuning your guitar with a tuning fork.
We also have an A440 “Ring Tone” for your mobile telephone. No, we do not expect you to use it as a ringtone, however, if you put it into your phone as “A440″ you will then always have a reference tone, or digital tuning fork in your pocket wherever you go – even if you have no Internet connection. You can simply parse your ringtones and play your A440 tone to tune an instrument wherever you are.
Click on the download button to download an A440 (Concert A) tone, click the play button to play the tone.
You may also get this file as a .wav file from our “Whole Scale” page which has all of the notes of the scale in .wav format.