For a self-guided outing, Knoxville's Country Music Heritage audio tour follows stories of musicians connected to the city, from Dolly Parton, Hank Williams, and Elvis Presley to less familiar songwriters. It can be played while walking in Knoxville or used virtually at home, so you can set the pace rather than chase a group. I'd keep the phone charged and the bag light; the stories, not a pile of extra equipment, are the point. 
Embassy Suites By Hilton Knoxville West is another Knoxville base for a University of Tennessee visit, with the campus 16 km away. Its rooms have a refrigerator, desk, and sofa bed; the property lists an indoor pool, fitness centre, restaurant serving American dinner, bar, sun terrace, and outdoor fireplace.