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1. Automate Community
2. Music & Audio

make your volume buttons work as media
Needs android 5+
18 blocks long

Now work with any player, but still, here is the app i use for testing: "apollo"
Is the player of... I think... CyanogenMod?... I don't know, anyway it can be found here "https://forum.xda-developers.com/showthread.php?t=2625426"

+Press the vol + button to change to the next song
+Use the vol - key to change to previous song
+No longer require headphones as previously
+No longer needs to lock the phone as previous versions
+No longer useless notification (now it say the music and a progress bar)
+The volume can be controlled clicking the correspondent notification

Yea, i still use Google traductor.
I still a lazy person