*Offer valid until 12:00 AM GMT October 31, 2017 or while supplies last. Codes for additional free months must be redeemed by December 15, 2017. Customer must sign up for a free trial (new customers only). Credit card required. Prior Zune, Xbox or Groove Music Pass trial customers not eligible for free trial. Free trial continues to automatic paid subscription unless cancelled. During the first 30 days, customer will receive a token for 3 months of Groove Music Pass at no charge. Tokens will be delivered to subscriber via email or Xbox message center. Upon completion of the promotional period, membership will be automatically billed as specified at signup unless cancelled. Limit 1 token per customer, single use only. Token must be used by December 15, 2017. Not valid on prior orders or purchases; cannot be transferred or otherwise redeemed for cash. Not combinable with other offers. Valid in US, UK and Canada only. Groove Music Pass catalog size and availability varies by market and over time. Microsoft account and internet required; ISP fees apply. Works with Windows 10, PC, tablets and phones, Windows 8.1, Xbox One and Xbox 360 (Xbox Live required). Works with Sonos, Android and iPhone; see app stores. Requires up to 100 MB storage. Download music on up to 4 devices (not available on Xbox and the Web). Stream to one device at a time. Subject to terms (which may change without notice) at microsoft.com/msa. For service usage rules visit Usage rules for Digital Goods (“Rules”) - Microsoft Support.
https://www.microsoft.com/en-us/groove/evergreenplusthree.aspx