pxt-calliope/docs/reference/music/change-tempo.md

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2016-03-26 00:47:20 +01:00
# Change Tempo By
Change the tempo by the specified amount
## Simulator
Simulation of this function is available in many, but not all browsers.
```sig
music.changeTempoBy(20)
```
### Parameters
* `bpm` : [Number](/microbit/reference/types/number) - change the tempo by beats per minute
### See also
[play tone](/microbit/reference/music/play-tone), [ring tone](/microbit/reference/music/ring-tone)