pxt-calliope/docs/reference/music/play-tone.md
Sam El-Husseini e3975e65e5 pxt-microbit Accessibility PR ()
* Accessibility changes
2017-09-07 13:42:08 -07:00

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# Play Tone
Play a musical tone through pin ``P0`` of the @boardname@ for as long as you say.
## ~ hint
This function only works on the @boardname@ and in some browsers.
## ~
```sig
music.playTone(440, 120)
```
## Parameters
* ``frequency`` is the [number](/types/number) of Hertz (how high or low the tone is).
* ``ms`` is the [number](/types/number) of milliseconds that the tone lasts
## Example
This example stores the musical note C in the variable `freq`.
Next, it plays that note for 1000 milliseconds (one second).
```blocks
let freq = music.noteFrequency(Note.C)
music.playTone(freq, 1000)
```
## Using other pins
Use [analogSetPitchPin](/reference/pins/analog-set-pitch-pin) to change that pin used to generate music.
```blocks
pins.analogSetPitchPin(AnalogPin.P1);
```
## See also
[rest](/reference/music/rest), [ring tone](/reference/music/ring-tone) , [tempo](/reference/music/tempo), [set tempo](/reference/music/set-tempo),
[change tempo by](/reference/music/change-tempo-by)