I’m sure part of the reason he is giving them away for free is so that his talent is known, he gets more exposure by the community, and more people will place real orders with him in the future. While a lot of the music is good, sometimes it isn’t enough for an entire project. And in that case, would you rather find another musician who’s music sounds totally different, or just order from the guy who can produce a consistent style as the one you already have? ;D
That being said, it’s still a pretty cool gesture and I thank him for his efforts!