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pxt-calliope/docs/lessons/happy-birthday/challenges.md

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# happy birthday blocks challenges
Coding challenges for finishing the song, happy birthday.
## Before we get started
batch fixing ](/microbit/ -> ](/ links
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Complete the [happy birthday](/lessons/happy-birthday/activity) activity and your code will look like this:
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```blocks
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.E), music.beat(BeatFraction.Quater));
basic.pause(100);
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.G), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
basic.pause(100);
```
### ~
### Challenge 1
Let's code the third part of Happy Birthday!
To do this, you need to add blocks after the last line of the `play` blocks. We want to continue to adding musical chords with the `play` block. Then insert the appropriate chord blocks `G`, `E`, `C`, `B`, `A` to complete the third part of the song. Modify your code so that your code looks like this.
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```blocks
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music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.E), music.beat(BeatFraction.Quater));
basic.pause(100);
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.G), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
basic.pause(100);
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.A), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.E), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
basic.pause(100);
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```
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* click *run * to see if the code works as expected.
### Challenge 2
Finally, we continue to adding the appropriate `play` block and fit the following chords blocks `F`, `E`, `C`, `D` to complete the third part of the song. Modify your code so that your code looks like this.
```blocks
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.E), music.beat(BeatFraction.Quater));
basic.pause(100);
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.G), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
basic.pause(100);
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.A), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.E), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quater));
basic.pause(100);
music.playTone(music.noteFrequency(Note.A), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.A), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.B), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.G), music.beat(BeatFraction.Quater));
music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quater));
```
* click *run * to see if the code works as expected.
### Challenge 3
You now have a the ability to create music on the micro:bit. Try to code another favourite song.
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