If you tip them like 100 credits they send you a link to media fire with 33 songs!
1000 credits are about $10 I think. I would highly recommend it!
I think one or two of their tunes were used in First! the NS video. I would share the link myself but I feel the artist deserves credit and $1 for 33 songs is a fair trade IMHO.
You can listen to it first on the website to decide if you like it or not, so check it out!