If I'm not mistaken he means the noise at 3:37. Personally I think it's not as "ting"-y as a flute hitting a stand, but more like a mass page-turning or perhaps a percussion stick hitting something. Just doesn't sound like metal. If you want some real instrument noise, listen to the bassoon keys clicking from 0:41 to 0:51 in "Watto's Roll of the Dice"! Now *those* are some noisy instruments!