So, by the calculations on Elanthipedia and using the Genie circle calculator, I should've needed 270 min ranks of each music to reach 100th circle. However, once I finally managed to get my highest weapon to 330 for my last requirement, I was told that I needed to work on my music skills. My winds skill was lagging behind at 296 as my lowest music skill, but it still should've been more than enough to allow me to circle. However, I went and dutifully trained up my winds another 4 points, checking after each one with Tasdrean and Silvyrfrost, until I hit 300, when they finally let me circle.
This was mainly just a "did something change at some point?" kinda question post. Was I wrong in reading the requirements that others had posted?