The new musical paradigm (to those of us over 40) is subscription-based music services. There are a lot of them out today and I have not tried but a few and of those Google All Access Music has been the clear victor.
Not only can you stream what you like - artist, playlist, album or song - but you can also download music to the device to listen to when offline. Of course, as expected this functionality is active as long as the subscription remains current. Along with these features, Google keeps track of what songs you like and don't (with convenient 'thumbs up' and 'thumbs down' buttons) and recommends music accordingly. All of this is nothing new. Most of the services out there have some sort of similar system in place, however with Google being an Aggregator of a lot of our data through our Google accounts, this can make cross-pollination of our data much easier across a variety of services. What this amounts to is 'ease of use' when it comes to the end user experience of many of these services.
Google All Access is an awesome answer to modern day digital music subscription services. Read about it and check them out.
https://play.google.com/about/music/allaccess/#/