Song, who left Arsenal last week to sign a five-year deal at the Catalan giants, thinks that he will adapt well to his new surroundings.
He told the club's official website: "I'm pretty tough in one-on-one situations, I always try to win the ball. I think that English football is a bit different to Spanish football.
"It's more physical in England, but it's different here and I'll have to adapt. I don't think my style of play will change that much, but I will have to improve.
"There are a lot of games every season when you play for Barca, and I said that I would give it my all because if the manager believes in me he'll give me chances to play."
Barcelona play their first away match of the La Liga season against Osasuna on Sunday.