The best music curation is done by people. Having worked in the music industry for a number of years including radio station, live sound, stage, concerts, and music production, potential customers love to find a good station that they can just hit play and enjoy. If you have a good DJ you will have a big company. There are lots of ways to go about doing it to from doing it entirely by yourself with developers to using services like Live 365. In my experience, customers always ranked music picked by a DJ higher than those picked by Pandora, Google, iTunes etc.

The downside to curation systems is they are designed to find things you enjoy which means your music is consistently going to be the same. DJ's are able to introduce you to music you might not have discovered otherwise.

As a side note I am not an old guy reminiscing about the good ol days. I'm in my 20's with active Pandora, Google Play All Access, and iTunes accounts. I love being able to discover a song through the radio or being occasionally surprised by Google (it's algorithm isn't as good as Pandora so it sometimes thinks I would enjoy some pretty strange songs) and then adding it to my Google Play account.