At last I've finished making a tutorial for FATCATs song editor. I've been meaning to do it for the last couple of weeks now, but I didn't realize how much work it would be until I actually got started. 

I tried to ad-lib it a couple of times but the result was just a mess. I ended up actually writing a four page script, and even then I had to redo some parts.

Anyways, here it is. It doesn't cover every single feature in detail. But for anyone who wants to build the device, this should definitely be enough to get you started with making some music on it.