Fascinating stuff.

I have aimed much lower myself. Harmony can generate 'random' tunes which are roughly in the style of a Jig or Reel.

I have played with rules which place some restrictions on the actual sequence of notes generated, to try and obtain a realistic emulation of a style. For example, the largest interval used is limited, because jigs and reels don't tend to make jumps of more than a fifth.

Reels and hornpipes have to have different rules, as would probably be expected.

Sometimes, the output isn't TOO bad!