Compilation (watch full screen)
As you can see with Amy Lee here, especially, she doesn’t have the sprite-like voice that others like Calypso and Charlene have. But more than that, I think a proper definition of the vultology of seelie/unseelie is in order:
A vulnerability in the voice (airy)
A softer edge/tone to the body
May include wounded expression
A subtle (or strong) barrier between the Fi and the exterior
A snappier body posture, and more matter-of-fact voice
May include sarcasm, snark, etc
What unseelie is not:
Unseelie doesn’t necessarily mean ill-meaning. A lot of unseelie people are very ethically motivated, not harm-oriented, but they are also not unguarded. They’re ‘defending’ themselves against the world rather than retaining an open channel to it. You could consider unseeliness an essential “closure” of the heart valve between the Fi user and the other people. Seelie Fi users have an open channel between their heart and the world, which can either cause an effeminate delicacy or forlorn energy to emanate. Inversely, a defended heart (unseelie) will hold their own, so you won’t sense delicate ‘radiation’ of Fi energy. They might be good-willed, and be very clever/witty, but they keep the door shut and their inner vessel guarded.
Amy Lee’s unseeliness can also be registered in her dark songs, especially from before. And Britney Spears also has a sassiness to her songs, and a standoffish demeanor that speaks to the self-protection of unseelie Fi. But it’s also worth noting that NeFi’s are different from other Fi/Te users in that their dominant Ne adds a natural optimism and levity. Thus the baseline for unseelie is different in NeFi’s and they may still seem relatively agreeable and nice even when unseelie, due to that levity. But besides that, their vultology is just like that of those above.