HTML5 Guitar Tab Editor with custom language

Nice. This is one of those things that once you see it you wonder how it got to be 2010 without anybody having done it yet.

Here are a few of my initial observations:

- Why justify the notes? It's common to use spacing as an informal way of indicating timing, so if you auto-justify everything you make that impossible.

- Are Chords on the way?

- Are you planning to write an importer for the 12 zillion existing tabs in ASCII format? I imagine most of them are parseable.

Nice execution but as always I wonder why the author preferred canvas over SVG. Nothing wrong with canvas but aren't those tabs a perfect example of a vector graphic?

edit: SVG typo.

Very neat stuff. I've actually been working on a site that basically does tab collaboration (kinda like Github for music/tabs) and have been pondering how to do something like this.

It'd be pretty cool if somehow you could incorporate a means of playing that tab as well but I can't think of how to do that without flash. I suppose time signatures would be important to have as well.

Question: how to put chords there? I saw image of this at your blog post, but can't figure it out at the demo.