itunes account

so I am using my Chrome book to gain access.

No, it is not possible.

You can't install iTunes on a Chromebook, you need a Windows OS or macOS computer, and yes an iPad or iPhone.

Apple Music is not the same as iTunes (Windows OS (PC) or iTunes macOS.

Add:

Try this -> to subscribe to Apple Music from a Chromebook, you can Join Apple Music on Android:

Join Apple Music on Android – Apple Support (UK)

You are sign in here .  .  .  with your Apple ID & Password.

Your Apple ID is the personal account you use with all Apple products and services. It includes the email address and password you use to sign in, as well as the contact, payment, and security details that you use with Apple.

You can’t merge multiple Apple ID accounts.

Use the same Apple ID & Password that you use to sign in here.