I HAVE listened to ayu-mi-x 4, I just haven't really absorbed it fully. I don't remember the tracks on it yet. I've given it maybe two full listens, and I've heard many of the tracks multiple times when they came up randomly in the car or while I was working.
My opinion of trance in general is based more on what Prime has mentioned or played for me, and the few episodes of A State of Trance I've tuned in for in recent years. Nothing grabs me like it used to.
That said, I will DEFINITELY give your links a listen when I get the chance, probably in a few hours or tomorrow morning - the way you are describing them, they sound like EXACTLY what I've been wanting to hear but haven't been hearing anywhere! Why's this stuff gotta be so hidden among the EDM stuff?
I mean I like EDM fine, but it's like a fungus growing on every other genre I like o___o! Even ayu-ro mix 4 sounded more like a bunch of EDM with some somewhat-SEB-inspired keyboard solos. x_x