If your computer music has no sound, you can follow the following steps to troubleshoot:

1. Check the volume: First, you need to check whether your computer volume has been muted. If Already muted, please turn up the volume.

2. Check the speakers: If the computer volume is turned on, you need to check whether the speakers are connected to the computer and turned on. If it's connected correctly and turned on, you need to check if there's something wrong with the speakers.

3. Check the audio jack: If your speakers are working properly, you need to check if your computer audio jack is connected correctly. You can disconnect and reconnect the plug to see if there is any sound.

4. Check the driver: If your audio jack is connected correctly and there are no problems, you need to check your computer driver. You can open Device Manager, find the audio driver, and try to update or reinstall the driver.

5. Check audio settings: Finally, you need to check your computer audio settings. You can open the control panel and look for the audio settings, confirm that the settings are correct and try changing the settings to see if there is sound.

If the above steps do not resolve the issue, you may need to do more in-depth troubleshooting or contact technical support.