use this method for better trills on the piano

11:25

4:25

کوتاه

4:19

2:49

9:20

2:52

4:36

3:21

11:24

11:24

5:33

2:06

9:59

کوتاه

6:47

4:18

10:35

1:43

10:10

2:38

3:36

3:31

4:13

9:13

6:25

4:43

12:24

7:22

4:10

4:02

2:32

3:53

7:31

11:28

3:25

3:26

3:02

15:15

13:22