This is a bit of a shock and very sad - I was only watching Kate & Anna's Christmas show video a couple of days ago - and drooling over that lovely song and solo performance by Kate. Kate and Anna McGarrigle have been my personal favourite recording artistes for 30-odd years, their's is the music I play most consistently and can't see that ever changing while I breathe. Heavenly and totally unique.
I never met them or saw them 'live' to my dismay and regret and now I never will.
RIP Kate and sincere condolenses to Anna and all family.