It took The Dude on the Right about a week to get his concert review of “The Swell Season,” you know the duo from the movie “Once,” those duo being Glen Hansard and Marketa Irglova, posted, and as much as he would like to blame computer issues, he probably just needs to get back into the swing of things about writing concert reviews. He loved the movie “Once,” and even though, at times, Glen didn’t actually relate a story in a way anyone could understand, The Dude, well, he loved the concert.