My two quotes say that she began writing at a young age. And that her singing developed organically from her writing. Dominant or auxiliary intuition has a strong connection with written expression. Sensing, not so much.
Comparing Se and Ne:
Se focuses on the experiences and sensations of the immediate, physical world. With an acute awareness of the present surroundings, it brings relevant facts and details to the forefront and may lead to spontaneous action.
The Se types have a “feel†for atmosphere, style, and image. They know what people are interesting in and like being recognized as paradigmatic of the trend. ESPs often speak of that peculiar thrill of knowing their game, knowing when luck or timing or the cards or and audience is “with themâ€. An ESP assesses what’s going on, plays on it, and takes pleasure in the escalating sense of mastery. You can always tell by the ESPs in the crowd exactly what pop culture currently regards as admirable, stylish, fascinating, outrageous, or exciting.
Ne finds and interprets hidden meanings, using “what if†questions to explore alternatives, allowing multiple possibilities to coexist. This imaginative play weaves together insights and experiences from various sources to form a new whole, which can then become a catalyst to action.
Ne involves entertaining a wealth of possible interpretations from just one idea. Using this process, we can juggle many different ideas, thoughts, beliefs, and meanings in our mind at once with the possibility that they are all true. By using this process one can really appreciate brainstorming and trust what emerges, enjoying imaginative play with scenarios and combining possibilities, using a kind of cross-contextual thinking. [...] Words, ideas and possibilities spew effortlessly from Ne using types. They are keen improvisers, and they are rarely caught off guard; there is always something up their sleeve.
It might be just me, but Se seems to describing someone like Lady Gaga. Not Kimbra.
I say she uses Ne because she's not a natural "performer" in the sense she doesn't thrive on performance, like a Se might. It may be fulfilling or exciting, but essentially it is a way of expressing her Ne ideas and thoughts. I would say Kimbra is closer to a songwriter than a singer, although she has combined both successfully. If you watch her interview, you notice she focuses on getting used to the idea of performing in front of large crowds. Not really an attitude you'd see with a dominant Se.