# happy birthday blocks activity Play sounds with music blocks. Have you ever tried to play a song on an instrument? Let's try coding the song "Happy Birthday" on the @boardname@ ! Let's start by adding the code in the music drawer that includes a single musical chord (or pitched sound) with the `play` block. Then insert the chord "C". Once you are done coding, don't forget to run your code in the simulator or the @boardname@. ```blocks music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); ``` * click run to see if the code works as expected. We want to continue to adding musical chords with the `play` block. So insert the appropriate chord blocks: `D`, `F`, `G` to complete the first part of the song. Modify your code so that your code looks like this. ```blocks music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.E), music.beat(BeatFraction.Quarter)); basic.pause(100); ``` * click run to see if the code works as expected. We want to continue to adding musical chords with the `play` block. Then insert the appropriate chords: `B`, `C`, `D`, `E` , `F` to complete the second part of the song. Modify your code so that your code looks like this. ```blocks music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.E), music.beat(BeatFraction.Quarter)); basic.pause(100); music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.D), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.G), music.beat(BeatFraction.Quarter)); music.playTone(music.noteFrequency(Note.F), music.beat(BeatFraction.Quarter)); basic.pause(100); ``` * click run to see if the code works as expected. ## ~avatar boothing Excellent, you're ready to continue with the [challenges](/lessons/happy-birthday/challenges)! ## ~