Album classifier
Overview of E, G, H, C, R and outcomes X, A, P, S, Z. The article transition table defines complete guards.
Album classifier
E · Retained facts
Explicit ownership first
X · Explicit
album
Otherwise ↓ · Empty → Z
G · Ordinary grouping
Ordinals + weights
H · Chapters
→ A or X
Has FILF
Grouped, no chapters ↓
C · Singles decision
Protection → predicates
A · Ordinary
album
Protected / no
candidate = true ↓
R · Basket routing
Common credit + eligible
P · Artist
singles
eligible = true
Otherwise ↓
S · Global Singles
G → R: an unclaimed position
New snapshot: every outcome → E