Module hexatonicblues 

music21’s WeightedHexatonicBlues, made reproducible.

Upstream this is the one ConcreteScale subclass that is not deterministic: its IntervalNetwork sets deterministic=False and branches at the fourth degree, so two calls on the same tonic can return six or seven pitches. It is a sampler, not a table, which is why it cannot be a ScaleType variant — a generated parity fixture for it would go red at random.

The branch is the only source of that randomness, and it has exactly two outcomes: take the blue note or skip it. Both are exposed here as named BluesForm variants that are perfectly deterministic, plus a WeightedHexatonicBlues::sample that picks between them from a seed you supply. Nothing in this crate reaches for a global random number generator.

Structs

WeightedHexatonicBlues

music21’s WeightedHexatonicBlues, with the randomness made explicit.

Enums

BluesForm

Which side of the network’s branch a realization takes.