Nestled in the northwest corner of Alabama, the small town of Muscle Shoals was sweet home to a pair of legendary recording studios – FAME Studios and Muscle Shoals Sound Studios – and the Swampers, the backing band for some of the greatest music ever recorded. Now Muscle Shoals, a feature-length documentary directed by Greg (Freddy) Camalier showing at TIFF Bell Lightbox starting this weekend, is set to tell the story of FAME Studios’s boss Rick Hall and the region’s deep-soul sound that produced hits for Percy Sledge, Wilson Pickett, Aretha Franklin and other musical icons of the 1960s and ’70s.The film premiered at the Hot Docs documentary festival in Toronto earlier this year. Brad Wheeler highlights some of the magic moments in Muscle Shoals music. (Muscle Shoals runs at Toronto’s TIFF Bell Lightbox from Oct. 4 to 10)