Thanks for your reply.
You didn't give us much information to go by,but did you sync your iPad to iTunes in your Mac or PC? If music on your iPad shows no content, then it either didn't sync or you did something wrong.
I am using W7, the latest version of iTune and iPad2. Music file format is MP3. Please let me know if there is any other which may help.
I could see music titles in one of the playlists in the iTune. And I did execute sync.
I reviewed a tutorial at Apple's website for how to import music onto iPad. It indicates that there are two ways to do that as follows:
1) Select your device.
2) Click "On this Device."
3) Then choose "Add to" in the upper right corner.
I set the option for "Manually manage music and videos" but then I could not follow the above steps because of the following reasons:
I did not understand what does "Select your device" mean. Clicking iPad shown under devices? Then I could not find "On this Device" and "Add to" anywhere on the iTune.
It does not matter for me which way to import music but it appears music is not yet in the iPad as your reply indicates.