Sometimes, learning about Basque music when you reside outside of Euskadi can be difficult. There are new media available, including streaming music on the internet, but, still, it can be difficult to really sample and discover new groups.
Txema of Bilbo sent me a link to Ekaitzaldi, a blog that covers a wide range of Basque music. The only criterion is that the music was made in Euskadi. The styles range from punk to classical to, it appears, Latin as well. What’s more, and what may be questionable, legally, the blog offers downloads of the music. But, it might be a way to sample music before buying it.