You can easily change your Zune Music Pass subscription or cancel it. If you have the $14.99/month Zune Music Pass, you can also change to the new $9.99/month Zune Music Pass (but you'll no longer receive the 10 monthly song credits).
You have two methods by which you can update or cancel your Zune Music Pass.
Go to http://live.zune.net/client/accountmanagement.ashx and sign in, if you are asked.
Note
Use the Windows Live ID associated with your Zune Music Pass.
From the My Account page, click the Manage Zune Music Pass button, located at the top of the page. You will be redirected to live.xbox.com.
From the Select a Membership page, you can cancel your subscription by changing Auto-Renewal in Zune Music Pass details from On to Off and clicking Save Changes. Or you can select a different subscription under the Zune Music Pass section.
Go to http://www.xbox.com/account and sign in, if you are asked.
Note
Use the Windows Live ID associated with your Zune Music Pass.
From the My Account page, click the Upgrade/Manage button under the Zune section.
From the Select a Membership page, you can cancel your subscription by changing Auto-Renewal in Zune Music Pass details from On to Off and clicking Save Changes. Or you can select a different subscription under the Zune Music Pass section.
To remove Zune Music Pass content
Open the Zune Music + Video software and sign in, if asked.
Note
Use the Windows Live ID associated with your Zune Music Pass.
Click Settings, located at the top of the screen.
Click Account, located in the upper-left corner of the screen.
From the Summary page, scroll down until you see "Delete all Zune Music Pass content," and then click Delete.
Click OK to confirm.