VINCE GILL PACKS 16 SONGS IN TO GUITAR SLINGER

By STEVE KNOPPER. Special to Newsday The title character on Vince Gill’s latest album, “Guitar Slinger,” is one of those fast-fingered, heavy-drinking cowboys you hear about in a million country songs. But in the middle of writing the song, Gill realized the title rhymed with something impossible for him to resist. So he threw in…