Andre wants to practice the piano for 9 hours a week each time he practices he does it for 2/3 hour. if he has already practiced 2 hours this week how many sessions, x, does he still need to practice to surpass his goal.
Andre wants to practice the piano for a total of 9 hours a week, and he has already practiced for 2 hours. Therefore, he still needs to practice for 9 - 2 = <<9-2=7>>7 hours.
Each time Andre practices the piano, he does it for 2/3 hour.
The number of sessions he needs to practice can be calculated by dividing the total hours he needs to practice by the duration of each session: 7 / (2/3) = 7 * (3/2) = 21/2 = <<7*(3/2)=10.5>>10.5.
Since Andre can't have half of a session, he needs to practice for 11 sessions. Answer: \boxed{11}.