how to install itunes on ubuntu 12.1

There are often (not always) other options.

But before suggesting an alternative, we need to know the exact model and make of the physical audio device that you want to connect/sync with the PC.

the newest version of itunes, the one you get from their site.

You must install iTunes either on a VirutalBox (Windows) or via Wine or PlayOnLinux (programs).

Apple does not support Linux.

For a wine(PlayOnLinux) - iTunes installation , read the links below
http://www.techlw.com/2012/03/install-itunes-on-using-playonlinux-on.html
http://www.ossdoc.com/2012/10/installing-itunes-on-various-ubuntu.html

Thanks

nvm i found a way to get free music through that youtubue converter thing. thanks anyways

That's not what I meant.

Here are examples of audio players I was referring to:

Apple: iPod 1g through 5.5g, iPod Mini, iPod Nano 1g
Archos: Jukebox 5000, 6000, Studio, Recorder, FM Recorder, Recorder V2 and Ondio
Cowon: iAudio X5, X5V, X5L, M5, M5L, M3 and M3L
iriver: iHP100 series, H100 series, H300 series and H10 series
MPIO: HD300
Packard Bell: Vibe 500
SanDisk: Sansa c200, e200 and e200R series, Fuze, Clip, Clip+ and Clip Zip
Toshiba: Gigabeat X and F series

Apple: iPod Nano 2g
Cowon: D2
HiFiMAN: HM-601, HM-602, HM-603, HM-801
MPIO: HD200
Olympus: M:Robe 500, M:robe 100
Philips: GoGear SA9200, GoGear HDD16x0 and HDD63x0
Samsung: YP-R0, YH-820, YH-920 and YH-925
SanDisk: Sansa Fuze+
Toshiba: Gigabeat S

Which device are you using??

If you do not need to sync with such an external physical audio player, then you can use these replacements for itunes:

I first suggest trying out musique (http://flavio.tordini.org/musique), which can run on Windows, GNU/Linux and Mac OS X.

musique (http://flavio.tordini.org/musique)
Amarok (http://amarok.kde.org/)
Aqualung (http://aqualung.factorial.hu/misc.html)
aTunes (http://www.atunes.org/)
Banshee (http://banshee-project.org/Main_Page)
Decibel Auto Player (http://decibel.silent-blade.org/)
Exaile (http://www.exaile.org/)
gmusicbrowser (http://gmusicbrowser.org/)
gtkpod (http://www.gtkpod.org/)
Listen (http://listengnome.free.fr/)
Quod Libet (http://code.google.com/p/quodlibet/)
Rhythmbox (http://www.gnome.org/projects/rhythmbox/)