How do I enable hibernation mode?! Have checked the resources out there, no clue still...

So,
I noticed, when I went home for Thanksgiving, that my computer was no longer going into hibernation mode on battery. So I entered "pmset -g" into terminal, to determine what the issue was, and these are my results:
standbydelay         4200
standby              0
womp                 0
halfdim              1
hibernatefile        /var/vm/sleepimage
sms                  1
networkoversleep     0
disksleep            10
sleep                120 (sleep prevented by iTunes, coreaudiod)
autopoweroffdelay    14400
hibernatemode        3
autopoweroff         1
ttyskeepawake        1
displaysleep         15
acwake               0
lidwake              1
I know that standbydelay is the delay for battery sleep, until it goes into hibernation mode. Since I have hibernatemode 3 enabled, it should be fine. However, standby shows a 0 next to it, suggesting to me that hibernation mode has been turned off somehow. I see that autopoweroff (which is the hibernation mode for when the machine is plugged in), shows a 1 next to it, signifying that it is enabled. And...like I would expect seeing these results, my computer hibernates fine after 14,400 seconds when plugged in...yet does not go into hibernation mode EVER when on battery.
How do I turn hibernation mode on for when the computer is on battery? There is a 0 there, so there must be a terminal command to enable/disable it. Not sure how it got jacked up? It's kind of annoying, because it should be entering sleep mode after 4200 seconds to save me battery.
running a mid 2012 non-retina MBP, 10.9.
Thanks!

By what the terminal is telling me is that iTunes is blocking the change. So you would have to disable iTUnes and then activate Hibernation to be able to do this. However I would hesitate in doing this because iTunes is a very active program that downloads tunes to your computer 24-7 because of all those that are free and downloaded to all subscribers.

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