iPhone 4 iOS 6 sync with Ubuntu 12.04

view story

http://askubuntu.com – Is there any way to sync an iPhone iOS 6 with my PC? I installed libimobiledevice and the iPhone is shown up in Rythmbox and Shotwell. But when i want to sync music with it, it doesn't work. There will be no music on my device. Please help. (HowTos)