Free MP3s: matryoshka
Matryoshka are a beautiful Japanese ambient post-rock band who released an album called Zatracenie in 2007.
All but two of the tracks are available for free download from last.fm:
(right click and "save link as" to download)
1. Sink into the Sin
2. Slow Snow
3. Evening Gleam Between Clouds
10. February Lifesaver
Earlier this year they released a great remix album, Coctura with remixes by the likes of aus, world's end girlfriend and tujiko noriko. Highly, highly recommended.
Here is track 10:
10. February Lifesaver (November Version)
They have a new album which is supposed to be released sometime this year.
Demo versions of some of the songs are available for free download:
2. Hallucinatory Halo
3. Gentle Afternoon
4. Monotonous Purgatory
Unfortunately, they don't seem to play live very often. But if they announce any gigs, they'll definitely be listed on Tokyo Gig Guide!