The City Veins: Spencer Vliet (left), Aaron Tarr and Charles Gray. Photo by Darren Higgins When The City Veins first started in early 2007, they were a good band. A four piece with sincere musical ability, we took notice (and not just because one of them is also our Nats columnist). But after Adam Bayes exited the group, and left the remaining members, Aaron Tarr, Charles Gray and Spencer Vliet, to figure out how…