早知道•愛 is a melancholic, mid-energy track by 盧學叡 from 星光第一棒 首張專屬 盧學叡同名專輯, released December 13, 2007. It runs 4:45 at 123 テンポ (246 テンポ double-time) in B♭ Major (Camelot 6B).

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