Over the past few years I have been more and more into old country and rockabilly. (My new favorite musician is Roger Miller — amazing!) So I was kind of intrigued by the prospect of seeing 72-year-old Wanda Jackson in the familiar confines of the Black Cat. I had some friends hanging out downstairs drinking, and was halfway tempted to pass up the show ($20 is expensive for the Black Cat) but I knew I would regret it if I didn’t check it out. Good decision! I actually knew some of her songs in a…