All supplied casting comparisons are unresolved per normalized status fields, so no confirmed cross-sex casting, gender changes, or established-character departures can be treated as facts. The supplied research shows the premise and episodes focus exclusively on musical ambition, ensemble work, and personal growth drawn from the author's experiences, with no framing around identity politics, systemic barriers, or critiques of norms. Incidental homoerotic subtext between leads is noted but remains non-central, un-affirmed as identity, and resolved within the narrative without explicit LGBTQ+ normalization or activist intent.

Material uncertainty exists around any unverified casting or source details outside the bounded record; unresolved premises cannot support a confirmed-change floor or elevated score. Supported unrelated findings of classic storytelling without progressive ideological centrality are preserved, placing the work in the minor/incidental range under the rubric. Casting evidence: Casting research is incomplete or contains unresolved comparisons; overall casting fidelity has not been established. The casting comparison for Tomoyo Kurosawa as Kumiko Oumae (voice) remains unresolved. The casting comparison for Chika Anzai as Reina Kousaka (voice) remains unresolved.