Observed song syntax · Structural model v0.1
Phrase repetitions learned from 6,581 foreground units. These are probabilistic descriptions of the annotations—not rigid biological rules.
Song-level order
Arrows summarize observed changes between contiguous theme runs.
Conservative review queue
| Score | Observed → suggested | Recording / time | Inferred structure | Evidence |
|---|
No recording leakage
Each file is predicted by models trained only on other files from the same year.
“Supported” excludes units whose true theme appears nowhere else in that year—the model cannot learn a supervised name for an unseen state. The one-unit boundary metric recognizes that a repeated cycle may be left-aligned at either neighboring unit without changing its grammar.