How do you resolve an Android phone's music issue (hardware, music, Android)?

follow these steps to solve problems

1. Activate the speaker.
2. Increase the in-call volume.
3.  Modify the app's sound settings.
4. Check the loudness of the media.
5. Check to see if Do Not Disturb is turned on.
6. Check to see if your headphones are plugged in.
7. Take your phone out of its cover...
8. Restart your phone