Music
To create a sheet music, add text inside a fenced code block with the abcjs identifier.
GitSite uses abcjs to render sheet music. Abcjs is an open source, JavaScript-based library that makes it easy to incorporate sheet music on websites.
You have to add the JavaScript because it cannot be rendered offline:
<script src="/static/abcjs-basic.js"></script>
<script src="/static/abcjs-init.js"></script>
The Abc notation inside the fenced code block will be converted to a sheet music:
```abcjs max-width=640
T: Cooley's
M: 4/4
Q: 1/4=120
L: 1/8
R: reel
K: Emin
|:D2|EB{c}BA B2 EB|~B2 AB dBAG|FDAD BDAD|FDAD dAFD|
EBBA B2 EB|B2 AB defg|afe^c dBAF|DEFD E2:|
|:gf|eB B2 efge|eB B2 gedB|A2 FA DAFA|A2 FA defg|
eB B2 eBgB|eB B2 defg|afe^c dBAF|DEFD E2:|
```
You can specify the max width by max-width=640 and the alignment by align=center. The really interesting thing is that you can play the music by controls instruction:
```abcjs max-width=640 align=center controls
T: Cooley's
M: 4/4
Q: 1/4=120
L: 1/8
R: reel
K: Emin
|:D2|EB{c}BA B2 EB|~B2 AB dBAG|FDAD BDAD|FDAD dAFD|
EBBA B2 EB|B2 AB defg|afe^c dBAF|DEFD E2:|
|:gf|eB B2 efge|eB B2 gedB|A2 FA DAFA|A2 FA defg|
eB B2 eBgB|eB B2 defg|afe^c dBAF|DEFD E2:|
```
Tip
The offical abcjs website provides a live editor with synth, so you can edit your sheet and check if it has errors.