All Music, All The Time

http://www.t-mobile.com/shop/phones/

my phone broke so i can get a free phone or one that cost $20 or less which one should i get?
i need the best one that fits my budget.
i need a mp3 or some music player in it
i need a T9 or smart texting
i need wi-fi (if possible) and or blue tooth
tell me why