pxt-calliope/docs/reference/music.md

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# Music
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Generation of music tones through pin ``P0``.
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```cards
music.playTone(0, 0);
music.ringTone(0);
music.rest(0);
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music.noteFrequency(Note.C);
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music.beat(BeatFraction.Whole);
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music.tempo();
music.changeTempoBy(20);
music.setTempo(120);
```