On a mac go to the view from the apple menu bar
On PC to the little half shaded box in the upper left corner of itunes and click on the down arrow and click show menu bar, then click view and click show sidebar.
Then go the sidebar menu on the left side of itunes and click on your device and then click on the tab for music and then click the sync music box and then make your selections of all music or select music and then click apply.
Currently Being ModeratedJun 16, 2013 3:10 PM (in response to 12342dawe)
Thank you 12342 Dawe, I got that part but when I connect my iPhone it does not appear on the side bar .. Usually I would see it before this update, now I don't even see the device under the side bar.. That's my issue..