Chiptune
chiptune.com
chiptune.com
And, a shoutout to, IMO, one of the coolest quasi-demoscene places on the internet, http://battleofthebits.org. Without them, I would never have gotten my feet off the ground with coding.
And, if anyone's curious (it's still in its incredibly early stages), https://github.com/ianremsen/lunartracker
The SID chips contain analog synthesizers that have a very distinct tone which is difficult to emulate in digital signal processing. There was also a lot of variance in the semiconductor manufacturing process, so no two SID chips sound exactly the same.
The SID emulators are actually very different from your typical audio synths, they don't run at the "native" output sample rate (ie. 44.1 or 48kHz) but do their processing at a much higher (closer to MHz) sample rate to better emulate some of the analog phenomena going on in the chip.
So, no, SID chips are still not "perfect" and will probably never be :)
http://208.70.31.85/OAKVALLEY/soasc/soasc_mp3/MUSICIANS/D/Du...
I've been a huge fan of this chip since I was a kid :)
Here's a site with just Amiga music and it has just over a quarter million songs.
This site has been around for a long time and is related to the oldskool demoscene (http://pouet.net) and chiptune music scene (https://www.youtube.com/watch?v=GH7eUlri4yM).
Unfortunately, apart from the neat OS emulation, it does a rather poor job at communicating what it is about or linking to interesting samples of the art.
[1] https://news.ycombinator.com/item?id=8873614
Not long ago the game was ported to popular modern formats, for anyone interested: http://www.indieretronews.com/2014/10/shadow-of-beast-legacy...