OK, so my dad got an ipad 2 for work and its come preloaded with alot of work apps and security measures..... I DO NOT WANT TO MESS THIS UP. He has his own Apple ID for work and set up his ipad on his work laptop with all the stuff he has (contacts, etc... NO music though). He wants to use our home iMac (which is connected to another Apple ID) that has our very expansive music library and get the music off of that to his iPad. What is the SAFEST way to get this music onto his iPad from our iMac???? We don't want to move the music to his laptop. WE ALSO DO NOT WANT TO ERASE HIS IPAD AND ALL THE SETTINGS AND APPS SPECIALLY DOWNLOADED FOR HIS WORK. Please help