Technical brilliance overcoming hardware limitations - the good old days!
Unfortunately many games didn't avoid the channel limitations, but I guess it's now all water under the bridge.
Talking about Amiga sound, I just realized that on todays machines I never load up games JUST to listen to the music, even though today it has no limitations whatsoever. Says something about those catchy four channel tunes (which would have been better with a few more channels!)