There are a lot of unsung heroes in Nashville’s music scene — the screen-printers, the sound guys, the bookers, the promoters, the house show owners — but there are few people more unsung than the poor schlubs who decide to book 8 Off 8ths. Have you ever tried to get eight bands in the same room without the promise of getting paid? Newsflash: it’s hard as hell. This week’s poor schlub is none other than local photographer (and BFF to science) Steve Cross, who has put together a solid line-up for Mercy Lounge’s weekly series. Aside from Cross’s own band — the ‘80s inspired synth-pop trio Scale Model — the line-up features everything from experimental electronica (Sugar Sk*-*lls) to uptempo ‘Boro power pop (King Arthur) and a slew of bands in between, including Bows & Arrows, Magnolia Sons, Bravo Max, I Believe in Hotpants and Honey Locust.