Create a relentless and intense deathcore metal track in Drop C tuning, featuring thunderous double bass drumming and intricate blast beats. Infuse the song with a haunting and melancholic atmosphere, incorporating dissonant guitar riffs and bone-crushing breakdowns. Maintain a fast tempo throughout the composition, ensuring a relentless and aggressive energy. The overall mood should be dark and sorrowful, invoking a sense of despair and anguish.