The title of Madi Diaz‘s “Silent Tonight” is every bit as deceiving as the band name itself. Though it suggests a solo singer-songwriter, Madi Diaz is actually the moniker of the Nashville-based indie-folk duo composed of Lancaster, PA-raised Madi Diaz—whom you might remember from her appearance in Don Argott’s 2005 documentary Rock School (about the The Paul Green School of Rock Music, which she attended)—and her mustachioed, guitar-slinging buddy Kyle Ryan. “Silent Tonight,” meanwhile, does borrow a melody or two and some lyrics from the classic Christmas carol “Silent Night”—but it actually has just as much in common with “White Christmas” as it does “Silent Night” (if not more). Consider it a mini-Christmas-song-medley of sorts, with plenty of original material sprinkled in for good measure. That’s a lot of music for a song that’s primarily made up of nothing more than Madi’s voice and a pair of acoustic guitars.