I really like this post, especially the interactive grid with labels. A quick tip so it's easier for people to share and link to it: please add some Open Graph meta tags to the page so it looks nice[0].
Anyone who's interested on the subject, I can recommend two books I found useful.
[1] Winifred Phillips: A Composer's Guide to Game Music
[2] Michael Sweet: Writing Interactive Music for Video Games
The first one is a bit heavier on freelance/business advice. Both go quite in depth with tips on how to work with game dev companies, but about half of the texts relate to actual composition techniques.