You can pick up a copy of the full hour-long album from Loudr (http://blake.so/supermetroid). DRM Free in your favourite format (FLAC or MP3) this 30-track album recreates every piece of music from the original soundtrack using an ultra-realistic virtual orchestra.
Another teaser of the Super Metroid Symphony album available from 19th March 2013. This one shows a snippet of 'Samus Aran, Space Warrior' Keep up to date on the Facebook page and website. You can also sign up for a release email so that you know as soon as it's available!