The Cameroonian is set to play again in tomorrow evening's trip to Newcastle and said: "My job is to work for the team but people don't realise this. When I made those two goals against Burnley people noticed me but I always try to do my job and when the opposition don't score, I think I've done well.
"I know I'm not the guy in the team who has to be offensive - I can do it but it's not my main role.
"We have players who can do that and when Denilson or whoever goes forward, I stay back. But that doesn't mean I don't go forward when I get the opportunity to. My job in the team is a more defensive one than that of Abou, Denilson and Cesc."
Song believes Arsenal have the momentum heading into the League run-in, having overtaken Aston Villa in the race for fourth place before Cesc Fabregas, Tomas Rosicky, Eduardo and Emmanuel Adebayor return from injury in the coming weeks.
He said: "We've had a lot of injuries which has made things tough. But we have the Champions League and FA Cup still to aim for and all the players are coming back. Hopefully we'll have a fully fit squad for the next round of the Champions League. I'm sure we can finish the season very strongly."