A sign of a strong female contemporary-style vocalist, in my books, is that she can sing strong/compressed vocals high in her range (not just in the comfortable middle), as well as sing breathy for effect in the highs, but also that she has
good dynamic control and can sing soft high or low without defaulting to breathiness for "softness", like so many lesser singers do.
MIKI has all this AND
a good head voice, not fully classical (like REMI) but leaning that way if she so wanted. I mean in the Moira Harmonia, she was harmonizing high up with REMI.
MIKI"s real wheelhouse is that bright, cutting, energetic mask belt. Her soul/jazz experience means she's able to ad-lib and freestyle notes when given space, and if the genre needs it. Maybe that's part of the reason she's compared to that older jazz singer (can't recall her name now). Not many Japanese singers can do this well unless they're really into jazz; they just do simple progressions or repeat a stock one every time.
MIKI then
again has ability to bring in the warmth when needed, including able to go fairly low too. Her tone was my favourite in the Moira Harmonia, especially when she was doing low harmonies. Distinctive and with that smooth vibrato too! Giving a cool/mysterious vibe to her performance.
Let me stop here.
