It's rare for me to propose an iPad app but this one's caught my eyes and ears this week.
Awe - is described on the apps store page as follows: Aweditorium re-imagines what a music experience feels like on iPad. It takes all of the disparate content surrounding an artist--beautiful photography, lyrics, high definition video, interviews -- and ties it all together into a fun, intimate experience on a multi-touch display.
Play around with the content and you will start to see how it assesses your likes and dislikes and works with them.
Check it out and yes it's free. Great for new artists and great for new ears.