[Xposed Framework Modules] glenalm:
Check below for the log. Sorry I dont know how to use spoiler. But the log is short. Please let me know what you think. Thanks.

11-24 15:11:23.671 I/Xposed ( 3218): PBMC: Processing key Back up mode 4 (audio 1, play 2)
11-24 15:11:23.681 I/Xposed ( 3218): PBMC: Processing key Back down mode 4 (audio 1, play 2)
11-24 15:11:23.681 I/Xposed ( 3218): PBMC: Processing key Back up mode 4 (audio 1, play 2)
11-24 15:11:30.901 I/Xposed ( 3218): PBMC: Processing key Home down mode 4 (audio 1, play 2)
11-24 15:11:31.011 I/Xposed ( 3218): PBMC: Processing key Home up mode 4 (audio 1, play 2)
11-24 15:11:41.331 I/Xposed ( 3218): PBMC: Processing key Home down mode 4 (audio 1, play 2)
11-24 15:11:41.431 I/Xposed ( 3218): PBMC: Processing key Home up mode 4 (audio 1, play 2)
11-24 15:12:00.741 E/Xposed (17350): java.lang.IllegalArgumentException: Not a primitive field: mbr com.google.android.apps.youtube.app.YouTubeApplication.f
11-24 15:12:00.741 E/Xposed (17350):	at java.lang.reflect.Field.setBoolean(Native Method)
11-24 15:12:00.741 E/Xposed (17350):	at de.robv.android.xposed.XposedHelpers.setBooleanField(XposedHelpers.java:739)
11-24 15:12:00.741 E/Xposed (17350):	at com.pyler.youtubebackgroundplayback.YouTubeBackgroundPlayback$1.beforeHookedMethod(YouTubeBackgroundPlayback.java:181)
11-24 15:12:00.741 E/Xposed (17350):	at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:314)
11-24 15:12:00.741 E/Xposed (17350):	at tar.c(<Xposed>)
11-24 15:12:00.741 E/Xposed (17350):	at ryd.onAudioFocusChange(SourceFile:208)
11-24 15:12:00.741 E/Xposed (17350):	at android.media.AudioManager$FocusEventHandlerDelegate$1.handleMessage(AudioManager.java:3119)
11-24 15:12:00.741 E/Xposed (17350):	at android.os.Handler.dispatchMessage(Handler.java:102)
11-24 15:12:00.741 E/Xposed (17350):	at android.os.Looper.loop(Looper.java:148)
11-24 15:12:00.741 E/Xposed (17350):	at android.app.ActivityThread.main(ActivityThread.java:7223)
11-24 15:12:00.741 E/Xposed (17350):	at java.lang.reflect.Method.invoke(Native Method)
11-24 15:12:00.741 E/Xposed (17350):	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
11-24 15:12:00.741 E/Xposed (17350):	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
11-24 15:12:00.741 E/Xposed (17350):	at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:102)
11-24 15:12:04.251 I/Xposed ( 3218): PBMC: Processing key Home down mode 4 (audio 1, play 1)
11-24 15:12:04.381 I/Xposed ( 3218): PBMC: Processing key Home up mode 4 (audio 1, play 1)
11-24 15:12:17.961 I/Xposed ( 3218): PBMC: Processing key Home down mode 1 (audio 1, play 1)
11-24 15:12:17.961 I/Xposed ( 3218): PBMC: Checking next chain: Vol Up
11-24 15:12:18.091 I/Xposed ( 3218): PBMC: Processing key Home up mode 4 (audio 1, play 1)
11-24 15:12:51.551 I/Xposed ( 3218): PBMC: Processing key Back down mode 4 (audio 1, play 2)
11-24 15:12:51.621 I/Xposed ( 3218): PBMC: Processing key Back up mode 4 (audio 1, play 2)
11-24 15:12:51.641 I/Xposed ( 3218): PBMC: Processing key Back down mode 4 (audio 1, play 2)
11-24 15:12:51.641 I/Xposed ( 3218): PBMC: Processing key Back up mode 4 (audio 1, play 2)