2. Then find the file button in the upper left corner of the interface.

3. In the menu interface that appears, click the second open button.

4. Click the song you want to edit in the open folder.

5. Then click the Open button on the right.

6. Then click the effect button at the top of the interface.

7. Find the time and tone sandhi in the menu that appears, and click to open flex and tone sandhi.

8. Adjust according to your own needs in the interface that appears.

9. Finally, click Apply in the lower right corner of the interface.