“It grows on you,” Mr. Gray said. He paused. “Like a cancer.” “Buh dum pa.” Both Blue and Mr. Gray enjoyed a laugh, and then were briefly silent as they realized it had been too long since they had been in the company of someone with their precise sense of humor, i.e., Maura Sargent. In the background, the Kinks played gently, the sound of Mr. Gray’s soul.