Anime music contributions if you are unfamiliar.
According to her husband, she seems to have been struggling with a chronic illness.
For some additional context, she had just gotten married back in March and then promptly went on an indefinite hiatus in July.
When I find a proper article in English I will link it here. Edit: ANN article
My personal favorites of hers are the Lycoris Recoil ED and the My Hero Academia ED. My favorite of her non-anime work is Anonymous.
I’d also nominate Aoibashi