Have you tried different music players? And maybe it's obvious but did you check after upgrading to ics that your music is still in your phone? because sometimes when upgrading to ics everything in the phone is deleted... And the last thing, there are some music players you have to select manually which folder contains your music to be able to play it, look a little bit in settings to check you have selected by default folder the one containing your music...
I always suggest the same player, but the fact is I'm in love with it
so why don't you try PlayerPro? Maybe your problem has something to do with the player you're using.
Good luck mate!
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