Can I use the default music app in ICS without linking it to my google account?
I'd guess this isn't CM9 specific, but based on a quick test on my Kindle Fire you can just hit the Back button on the account select screen the first time you launch Music and it will simply skip it. Also, you can unlink your account by clearing the Music app's data in your settings (Settings-&gt;Applications-&gt;Music-&gt;Clear Data).