History of Game Music (resources)
On this page GreenCouch posts some interesting resources about the history of Game Music.
This chronological compilation of Game Music gives a very nice view on the timeline of Game Music.
The movie is clearly based on these 2 articles:
GreenCouch has put a small experiment with Simile's Timeline online with the game-hardware and game(music) developments:
There's an integral recording of the Symposium Music @ Games on the website for the Muziekinstituut MultiMedia
The escapist discusses in a brief animation the evolution of Game Music.