Actually most of them are dead and no their families are not getting anything either I am pretty sure. Heck almost 80% of my songs I won’t be able to buy from anywhere at all.
Fun fact: I bought an MP3 from a record label site in my country and the file was from songs.pk. Yup!
And the artists and everyone who worked on it thank you very much for paying for an album/song instead of just paying a streaming subscription fee.