Music that you purchased - yes
Music that you downloaded as part of the trial or chose to stream - no
Beats 1 radio - yes
Works similar to Google Play and the other streaming/membership services. Also raises the question about the value of iTunes Match. Some believe that this form of music will become the new norm. Its definitely and interesting and exciting way for the musicians and others to promote their music as compared to before when they had to go through a middleman.