[jacquesm]

Fingering is harder than it seems, especially once you start to take into account speed, fingerings that work when playing slow may not necessarily work when playing fast. And individuals have different hand spans so a fingering that works for one person may not work for another.

If you crack this in a deterministic way it would be super useful as a library.

[Waterluvian]

Well when you put it like that, it truly does sound like an absolutely delicious problem to tackle.