At last spent some time writing music (instead of placeholders) starting with a proper game over theme:
https://soundcloud.com/nash_gold/spell-of-mastery-game-over-themeSorry for the ducks - they are for watermarking purposes, since some people are known to steal and reuse random stuff from soundcloud without giving credit.
I'm not really a musician, so I will keep it minimalistic and mostly ambient. I.e. most tracks will actually be duck tracks.