A member of the Bujold list requested a more detailed obituary.  This'll do to start.

Leslie Fish was a deeply complex person, with so many talents and interests, Diderot and the Encyclopédistes could have followed her around for a lifetime and still not kept up. Nimble fingers and nimbler mind, a sheer, stubborn persistence in living her life on her own terms [smokes, booze, & all], let's just say, Leslie and Piotr would've understood each other all too well. Opinionated and cantankerous, yet none more encouraging and supportive in a song circle or more generous in mentorship. Whether the topic was breeding cats [with thumbs!] or politics, restoring heritage fruit trees or the latest in technology, space or fantasy, just keeping up was sheer fun. Leslie was always a challenge and a delight; knowing her was a privelege and an honor.

I urge you to seek out her music, on youtube, bandcamp.com, and elsewhere, and let her speak for herself.

P. S. Links:  https://www.youtube.com/results?search_query=leslie+fish and https://lesliefish.bandcamp.com/