While we're on PS4-1 duty, let's check back with Don-chan's last foray into Sony hardware. In particular, the free early-purchase bonus turned paid DLC of Tutti! from Hibike! Euphonium will be taking its next and final step a DLC song will take: removed from purchase.
The removal will happen on June 30 2017, and this is a non-re-downloadable removal. But those who already downloaded can still play it.
Vita1 main site