Groupon offers New Apple Music Subscribers: 4-Month Apple Music Subscription for new subscribers.
Note, you may select Family or Individual Plan. After the four-month promotional period, plans will automatically renew to $9.99 a month for Individual memberships, or $14.99 for Family memberships unless canceled (instructions). You may cancel at any time and keep your four month trial period active.
https://www.groupon.com/deals/n-apple-music-2