I think that creating a dummy question on main would be too messy, and difficult to teach new users about. I don't know if other SE's have done stuff like that before, but I'd like to hear about it.
This page is a complete explanation of all jTab grammar complete with a parser up at the top.
I realize a lot of the annoyance is from how jTab is implemented on Music.SE in particular, but here are the simple rules:
- jTab will activate on all code blocks, and will display tab imagery for anything it can parse in those code blocks.
- To avoid this, use
<pre></pre> HTML tags.
- If you want line breaks in your jTab, you need to exit the code block completely and give yourself a couple of newlines before the next code block.