愛情研究院 is a neutral, mid-energy track by 李千娜 from 千娜舞台秀 - 彼段過去經過阮兜口, released September 5, 2025. It runs 3:19 at 115 テンポ (230 テンポ double-time) in F♯ Major (Camelot 2B).

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