Keiko (Kalafina) Vocal Range (C3 - F#5)

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Wakana (Kalafina) Vocal Range (A#2 - G#5)

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Hikaru (Kalafina) Vocal Range (C#3 - F#5)

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Jamiroquai's JAY KAY Vocal Range C3 - G#5 [STUDIO Note by Note]

Kalafina - BEST of Hikaru & Keiko

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Keiko vocal compilation from Kalafina's "Red Day" 2015 Live

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Wakana - 'Aki no Sakura EP' Vocal Range

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