Don't Know Why
12,627
R&B/Soul
Don't Know Why 由 StarVista 於 2009年8月25日發行，收錄於專輯《 》中Time Flies When You're Having Fun
旋律
歌曲有多麼清晰易記且符合明確音樂模式的旋律。通常，旋律分明的作品會擁有清晰易記的器樂或人聲主線。
原聲音質
此指標衡量一首歌曲在多大程度上依賴原聲樂器 (例如鋼琴、吉他、小提琴、鼓、薩克斯風)，而非電子或數位合成音效
Valence
歌曲透過和聲與節奏所傳達的音樂積極性或情感基調。數值高通常對應快樂、興奮或愉悅感，數值低則與悲傷、憤怒或憂鬱相關。
節奏感
綜合了節拍穩定性、節奏型態與重拍強度等多重因素，以判定一首歌曲適合跳舞的程度。一首「節奏感強」的歌曲，通常具備穩定的速度、重複的音樂結構與明顯的強拍。
輕快
曲目的律動感可能受節奏快慢、音量起伏與聲譜密度所影響。較輕快的歌曲通常節奏強勁，編曲豐滿；反之，不太輕快的歌曲則可能編曲簡約、節奏較慢。
BPM77
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