[actionfromafar]

You could finally create a SID spare part which sounds just like the original. (In fact, which sounds exactly like one individual chip!)

[ilyt]

If you train it on entire library and use real SID, maybe ? There is plenty of quirks in the chip that not all songs use

[actionfromafar]

Definitely have to try on an entire library and you could also on top of that feed the chip random (but recorded) input.