You might not think there’s an obvious music angle when Facebook announces “we’re making it possible for people to mention friends in user messages in Open Graph apps”, but bear with us. The new feature means that apps tied into Facebook can now let their users mention friends. “When people mention a friend in an Open Graph app, the story on Facebook links the person’s name to their timeline, and their friend will receive a notification,” explains the social network. “For example, people want to mention friends when they share a special song; call a particular friend’s attention to a great movie or restaurant; or describe a photo that includes a friend.” Share a special song? Bingo! We’ll be interested to see who implements that first.