In a dance music world where performances have become more automated thanks to the accessibility of programs like Serato, live musicians are a foreign concept. Despite the seeming novelty, there are acts performing today looking to preserve the funkiness brought to the fore by the likes of James Brown and Prince, among others. Two of them, Tortured Soul and Amp Fiddler, will bring their soulful stylings and love of 4/4 rhythms to the 9:30 Club…