Harry pressed his lips together and let the smokers have their fags for now. He could discourage Faelan without a fight, but Sirius wasn't going to be threatened out of smoking, even by a wizard who could put a permanent dousing hex on him, and Harry knew it.
"Serenus," Harry murmured to Faelan. "With the twin sons and the Auror down in Hogsmeade." Even the "good" Snape twin might be touchy once in a while; Faelan should know the names to avoid around him.
He let the subject of Sirius' song choice go. If the man wanted to break out all the moody standards he couldn't do without his mum, let him. Harry loved seeing her on stage with Sirius. He looked over his shoulder and gave his parents, who had moved onto necking like teens, an indulgent smile. His mum fluttered her eyelashes at him and Harry laughed out-loud.