I can tell you that, after having been a musician for 40 years, .. Zip. Zilch. Unless they're reissued, and that is a possibility, since retro is popular. But even then, it's the record companies that own the copyrights on most recordings before 1980, and the artist may or may not be deemed worthy to recieve a pttance, depending on if they have rights to their own publishing . I think if the industry gave a flying fuck about the artists they grind up, then instead of pushing for a 70 year term, which only benefits the big labels as all the recordings concerned are from the 60's music boom wherein the labels owned everything, then instead they would insist on a tax on every single used recpord tape and CD sold, to be divided upo between the recording artists and , possibly, head studio tech.