It cannot be opened. No one can see it after deleting it.

Detailed tutorial on deleting music jars:

1. Open NetEase Cloud Music, select a song to enter the play page, and click the "Share" button on the upper right.

2. Click "Customize Music Jar" in the pop-up window below.

3. At this time, you can see the word "All Jars" in the upper right corner, click to enter.

4. Find the jar you want to delete and click on it.

5. Then click the delete icon.

Detailed methods for customizing NetEase Cloud Music Jar:

1. Open the promotional image on the homepage and click to enter the music jar production page. You can also click below after choosing to play your favorite song. The play box enters the song play page.

2. After entering the song playback page, select the share button in the upper right corner.

3. In the pop-up tab, select Customized Music Jar to enter the music jar production page.

4. Click Make My Jar below to start making it. Enter All Jars in the upper right corner to view all previously created music jars.