Adam Mac is a fan of Bocephus' 1980 song "Dinosaur" — except for some homophobic lyrics. Mac changed them and added it to his live set When Adam Mac celebrated the release of his latest album, Southern Spectacle , with a live concert at Nashville’s rock outpost the Eighth Room last year, the queer country artist added a surprising cover song to his set: Hank Williams Jr. ’s “Dinosaur,” a track off Bocephus’ 1980 album Habits Old and New . “Dinosaur” falls on the “old” side of that title. While eminently catchy and barroom ready, the song, cowritten by Williams and Bob Corbin, is decidedly retrograde, with the singer pining for a simpler time where musicians are manly and attracted only to women. “You’re singin’ a song about makin’ love to your drummer/Well gay guitar-pickers don’t turn me on,” Williams sings in a lyric steeped in homophobia. Mac, a native of Russellville, Kentucky, grew up loving “Dinosaur” but, as an adult, couldn’t square some of its lyrics with his personal truth as a gay man.…