find perfect flat

1:14

00:46

9:35

00:28

10:35

17:18

6:29

7:48

7:21

19:14

1:11

11:04

9:46

2:11

6:59

3:19

3:39

7:23

8:04

28:21

7:53

7:03

3:28

6:54

7:07

28:35

13:52

5:03

6:23

1:17

6:24

5:02

5:52

4:54

9:11

2:14

3:38

00:36

00:23

9:35

7:11

1:57

3:09

5:46

2:10

4:51

2:04

7:11

7:10

8:43

14:49

6:06

15:20

2:51

4:24

8:43

6:42

7:08

6:19

00:32