PwnTunes for iOS 7 cydia tweak allows you to drag & drop music, import/export without iTunes.
Do you love your iPhone/iPod/iPad but hate iTunes? Frustrated with iDevices synching only with ONE iTunes Library and not your friends PC? Do you want to access your iTunes Music (including iTunes Store purchases) from any PC? Do you want to copy Photos to your iDevice?
Here is the solution: PwnTunes! And all this is as easy as plugging the USB cable into ANY PC – no extra Software required.