After freaking hundreds of attempts, I've finally managed to outsmart and beat slender.
Done in Day mode. Scroll down to see what times I collect the notes, ENJOY /) 

Note |  Time |
   1   | 0:50   |
   2   | 2:45   |
   3   | 3:33   |
   4   | 5:22   |
   5   | 6:28   |
   6   | 9:20   |
   7   | 10:00 |
   8   | 10:35 |

END  11:10 Skype (Account name): iam_master_rambo