If music isn't playing at all in the Android edition of Minecraft, consider the following potential causes:
Volume Levels: Ensure that both your device's volume and the in-game music volume are turned up.
Sound Settings: Check the game’s options to make sure that music is enabled.
Device Mute or Silent Mode: Verify that your device is not on mute or in silent mode.
Game Update: Make sure your game is updated to the latest version.
App Permissions: Ensure that Minecraft has the necessary permissions to access audio.
Background Apps: Close any background apps that might interfere with audio.
Reinstall the Game: Uninstalling and reinstalling the game could fix issues if the files are corrupted.
Software Compatibility: Some Android versions or devices may have compatibility issues with certain game features, including audio.
Hardware Issues: There might be an issue with your device’s speakers or audio hardware.
File Corruption: The game files could be corrupted, preventing music from playing.
Restart the Device: A simple restart can sometimes resolve minor software glitches.
Check for Conflicts: Some device settings or security software might prevent audio playback in specific apps.
If none of these solutions work, it might be helpful to contact Minecraft's support for device-specific troubleshooting assistance.