The Excerpt Levels

What it is

Per-difficulty-level excerpt aggregation pages at /excerpts/level/[level]. 4 new SEO surfaces — /middle-school, /high-school, /all-state, /college — each rendering every excerpt at that pedagogical level grouped by instrument. Targets long-tail queries like 'all-state violin excerpts list' and 'college audition cello repertoire'. Each level page has its own dedicated topical hook (LEVEL_BLURB) describing what the cut criteria are at that tier. CollectionPage + LearningResource JSON-LD with educationalLevel set. Catalog flywheel: every new excerpt added auto-expands its level's page.