The implementation method and detailed operation steps are as follows:

1. First enter the number 1-7 in the Word document, as shown in the figure below, and then go to the next step.

2. Secondly, after completing the above steps, select the text that needs to be input with high pitch, and then click "."

? "option, as shown in the figure below, and then enter the next step.

3. Then, after completing the above steps, change the corresponding pinyin character to "",as shown in the figure below, and then enter the next step.

4. Then, after completing the above steps, select the text to add bass, and then click the "More" option above, as shown in the figure below, and then enter the next step.

5. Then, after completing the above steps, click the bullet option, select "…" as the bullet, as shown in the figure below, and then go to the next step.

6. Then, after completing the above steps, select the notes that need to be added with Legato, and then click the "Underline" option, as shown in the figure below, and then go to the next step.

7. Finally, after completing the above steps, the desired result is obtained, as shown in the following figure. In this way, the problem is solved.