Q: Android iMusic trial on my mobile

Hey Steve, 

Welcome to Apple Support Communities!

If I understand correctly, there's an issue joining Apple Music or launching iTunes on your PC. The article below outlines the process for joining Apple Music on an Apple device or a PC.

Join Apple Music on your iPhone, iPad, iPod touch, Mac, or PC - Apple Support

If there's an issue that's related to iTunes not launching or working as expected on your PC, try running through the troubleshooting tips in this article:

Fix unexpected quits or launch issues in iTunes for Windows - Apple Support

Take care.