I have been doing some experiments recently with the Atari Display Processor Chip (DPC). This chip is used in Pitfall 2 to generate the display and music. It is now emulated by the Harmony/Melody, and so it can be used in homebrew games.   I have only experimented with the audio side of things so far, but the results are quite impressive. It is possible to generate music that is significantly better-sounding than the normal TIA tunes. I have attached two examples below (these can be pl