要点
What matters
Google 9 月 4 日宣布 Lyria 3.5 在 Gemini 应用和 Gemini API 可用，提供人声／纯音乐选择、模板和长短曲目选项。这是入口扩展；模型此前已于 7 月进入 Flow Music。
Google announced Lyria 3.5 in Gemini and the Gemini API on September 4, adding vocal/instrumental choices, templates and track-length options. This is an access expansion after its July Flow Music release.
范围与限制
Scope and limits
公告称 Gemini 网页与移动端全球用户可用，并列出 AI Studio、Flow Music 和 Vids 入口。公告本身没有解决所有商用授权问题，不能把能生成直接写成可无限制投放。
Google lists global web/mobile access plus AI Studio, Flow Music and Vids. Availability does not, by itself, establish unrestricted commercial advertising rights.
编辑观察：如何用到工作中
Editorial note: putting it to work
为同一短片分别做纯音乐与人声版本，比较节奏切点、对白遮盖和可循环性；投放前按实际产品条款核对使用范围。
Compare instrumental and vocal versions against the same edit for timing, dialogue masking and loopability; verify the applicable terms before campaign use.