I do very much like the image of some musician, who knows and is well in touch with their instrument, also using it to tell of coming danger and favorable or unfavorable portents. Whatever comes up, It'll be so much fun to imagine these things in travelling troupes.
It does raise the question of how this might shape the world in other ways, however. I find myself wondering if such things might be formative to young wizards. If a tool like this can enable someone to hear the winds, however coarsely, it feels like it might also end up as the tool of some wizard, since it is said that the biggest barrier to shaping magic is the ability to see what you're doing. That, or exposure to it as a way of understanding the winds making auditory windsight more common.
A little more out there, I'm also struck by the thought that It feels like there's a little overlap between the winds and the influence of the gods, so I find myself wondering if it might so happen that some of these could sound a little different in a hall of faith. (Unintentionally as a side effect, mind, not built in. The sort of thing that might come up in a folktale that focuses comes from a deity using the instrument as a means to reach their followers, not one that focuses on the inventions of a genius mage.) Or perhaps end up in the tale of the talented village priest, who among other feats, could play the instrument like no one else.
Looking at images of the Portative, it's far, far outside the aesthetic space of the usual organ, and seems almost like one made a harp out of pipes, so I can't invoke the mad count at the pipe organ, and perhaps that's for the best.
I do feel like it's either the Portative or the Hurdy Gurdy for me thus far. Perhaps the bagpipes or the tambourine since they both have strong aesthetics to them and those who play them — and in Warhammer!Scotland the former would be a shoe in — but I feel like I still like the prepared options more.
[X] Spinning Lyre
[X] Portativ