Ayu - C#3-F#5
Namie Amuro - Bb2-A5
Koda Kumi - F2-F6
JASMINE - F3-D6
Ringo Shiina - Bb2-C6
alan - D3-C#6
Beni - C#3-F6
BONNIE PINK - D3-G#6
Crystal Kay - B2-F6
Ayaka - E3-C6
Angela Aki - Eb3-F5
MISIA - F3-Bb6
Miho Fukuhara - C3-D6
few more at the source
source - jpqhvocals@youtube
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