I was trying to understand what happens if somebody uncovers material like diaries and sound recordings when the copyright runs out, so over seventy years after your death. I've recorded music and written diaries, but I wouldn't want them to be public/published. how does it all work? i recorded in a studio so i'm not totally sure who owns the copyright. i paid for the recordings and played it all myself and it was nearly all my own material.
(there may be duplicates of tapes that it'd be near impossible to trace - so not easy to find, to destroy myself)