get faster at double bass

11:35

6:27

10:24

4:38

10:50

8:50

11:35

7:03

10:36

4:58

4:58

کوتاه

4:11

2:32

4:00

28:41

5:16

28:41

2:09

8:19

9:19

8:19

9:06

3:11

11:10

5:02

5:02

3:47

14:22

8:44

14:22

10:26

کوتاه

کوتاه

4:00

2:19

2:19

3:21

4:46

2:41