"Our knowledge of one another is improving every day," Song told the Official Arsenal Matchday Programme. "It hasn't been easy because Mikel only signed for us recently, but you can see what a good player he is and I'm really happy to be playing with him.
"Aaron's doing well too, and we're all still coming together and learning what works best. We're all trying to help each other and that's important. The more we communicate, the better we'll get - if we're constantly giving each other advice on the pitch then we can become a very good unit.
"Also we've still got Jack and Abou to come back, which gives us a lot to look forward to in the midfield."