Picture as seen at http://www.leonardcohen.com/us/media/photos/521 Decked out in his tailored dark suit and signature fedora hat, Leonard Cohen dazzled his audience at the Wang Theatre in Boston on 12/15/12.  A seasoned man of intrigue and intellect, Leonard delivered a landmark performance that can’t be touched.  He was surrounded by a score of talented musicians who he openly admired several times throughout the night, showing humble appreciation with gentle words, nods, bows, and gestures during their performances.  He also acknowledged every person involved in the production, from the roadie to lighting person, by name.   For a rebel, he is a gentleman.  The  set-list  dug deep into his expansive body of work, including songs off his new album Old Ideas.  His songs, rich in verse, often explore a range of philosophies that illustrate powerful, raw, provocative, and sometimes taboo imagery.    He is no stranger to darkness, and he makes no bones about it.  He was a