Now it was my turn.... My harddisk died two days ago
Thankfully it did it slowly enough for me to get my files from my Time Machine backup (I have/had an iMac) copied to a regular backup disk that's readable from Windows (I've just sold the iMac - want to switch back).
Lost my Calibre library, but that was my own fault
I'm not really sure why I chose not to back that up
Oh, well, I still have all my books.
I lost all my music too, but that was sort of on purpose. I haven't backed it up because I want to start over from a clean slate and rip it again - had music in different qualities and formats.