How to move my music onto another apple account?

I got an iPod two years ago this iPod was on my dad apple account and over the two years I bought a lot of music. But recently I got an iPhone 4 and had to make my own apple ID but I can't find how to put the music on my iPod onto my iPhone.

On Windows:

Quit iTunes.
Locate your iTunes Media Folder. (This folder may instead be named "iTunes Music" if your iTunes Library was created before iTunes 9).It is stored by default:
Windows XP and Windows 2000: \Documents and Settings\username\My Documents\My Music\iTunes
Windows Vista and Windows 7: \Users\username\Music\iTunes
Note: By default, the Windows version of iTunes does not copy all of the music you add to your iTunes library to your iTunes Media folder. You can get iTunes to copy all of the Music in your library to your iTunes Media Folder (if you have enough hard drive space) by choosing Consolidate Library from the Advanced menu.

Drag the iTunes Media folder to a publicly accessible location. The publicly accessible music folder is:
Windows XP and Windows 2000: \Documents and Settings\All Users\Documents\My Music
Windows Vista and Windows 7: \Users\Public\Public Music
Important: Do not move the iTunes folder, the iTunes Library file or the iTunes Library.xml file.

Open iTunes.
From the Edit menu, choose Preferences.
Click Advanced.
Click the Change button.
Navigate in the Change Music Folder Location dialog to the location of your iTunes Media folder.
Click OK.
Repeat these steps for each account that is sharing music with other users.

Note: If multiple users on your computer are storing music in one publicly accessible folder, duplicate song files appear when a user imports music from a CD that has already been imported by another user.