From indie pop to country, jamgrass and roots reggae, here are some weekend music options in northwest Arkansas. Wednesday, July 11 Jenny Lewis at George’s Majestic Lounge (Fayetteville) - $30, 11:30 p.m. Thursday, July 12 The Mighty Pines at Gulley Park (Fayetteville) - FREE, 7 to 9 p.m. Friday, July 13 Carry Illinois, Magnolia, John Charles at Backspace (Fayetteville) - $5, 9 p.m. to 12 a.m. Aaron Kamm and the One-Drops at George’s Majestic Lounge (Fayetteville) - $10, 9:30 p.m. Adam