The PN Junction. Developed under Teaching Innovation Project 11293 of Universidad de Granada (Spain)
Creative Commons ByNonCommercialNonDerivs.
English version.
All the themes in the soundtrack were released under Creative Commons licenses by their respective authors.
Soundtrack:
www.yasnayamusic.ru
www.chillcarrier.de
kammerer.jamendo.net
www.marknine.com
music.tunguskagrooves.com