Bloomberg: Starbucks, once famous for hawking CDs at its registers, is moving into the age of streaming music. The coffee chain, which stopped selling compact discs in March after 20 years, announced a partnership with Spotify that will let customers give feedback on the songs played at their local Starbucks. Users of the Spotify and Starbucks apps also will have access to playlists created by the company’s baristas. Also, customers who sign up for Spotify premium subscriptions will earn “stars” that can be used through the Starbucks Rewards loyalty program.