This is an instant classic! Great idea to personify blues as a scary character, faceless threat. Great way to end by accepting the situation:
"Nothing left but let it enter
Find a peace within its center
Live to fight another day"
The chord progression is very enjoyable, not just usual blues standard.
The RT backing is excellent, the low guitars create the exact gloomy mood. Dave's playing and the sound is just perfect for the song. Marty's vocal is passionate, the key is just right for his voice. Mix is very clear and airy.

Janne

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