Eric Church is widely known as one of the best performers in country music. His unique ability to blend genres makes his records good, but hearing the sound live takes things to another level. His heavily rock influenced show, makes it unlike anything else around. One moment he’s in your face and the next he’s slowing things down. There’s songs about things that matter and songs about those that don’t. But if you’ve seen the chief perform before you already knew all that. What made Thursday night at the TD Garden different was the record breaking length.