[n_sonic]

This is excellent - thank you for sharing! Is there any (easy) way to make it play through each variation automatically? Maybe a "demo mode" you could trigger? Ideally, I'd like to sample each sound and create a instrument in Ableton that allows me to select tone and frequency (and then pitch shift). Not sure how I'll do it yet, but getting high quality samples would seem to be the first step! (Obviously I can just do it manually, but I thought it was worth asking!)

[masswerk]

This is really just a tiny test application made to find sounds for a game, and about similar to what you describe, but to be run directly on the Atari 2600 . However, if you want to sample the sounds, best get a native emulator like "Stella" [1] and run the ROM-file in this one (see the downloads section).

The best way to get a full walk trough of the tones and pitches would be to write a tiny Atari ROM file for this. (It's really just about setting three registers.)

[1] Stella documentation and downloads (Win, Max, Linux, and sources) https://stella-emu.github.io/

[n_sonic]

That sounds like a good plan, thank you. I'll run it in Stella and grab the audio output from that. Not quite sure I'm up to the coding of the ROM TBH, so I'll do it manually :)