We may have finished ORAS and Smash Wii U, but now we have our first music from Pokemon Shuffle:
-Stage Theme 1
Shuffle may not have as much music as the other two, but it should have a few more selections come in over the next few weeks.
Additionally, the first nine episodes of season 18 (the current season) of Pokemon have been posted on iTunes. Based on the handling of season 17, it is likely that Amazon will carry them soon as well.