Song of Sister Sun

The music is an earworm.
The sun can't seem to stay.
Everything was so perfect until the blues came.
After waking from a nightmare full of heat and discordant wailing, Neil finds that his mundane life is unraveling at the seams. People are staring into the sky. To make things worse, a song is stuck in Neil's head in the most literal way. But worst of all, there is something alive blotting out the light of the sun...