This specific video has helped me buckle down and get shit done so many times. I've even made loops of songs I have copies of on my computer for this kind of thing. The repetition OH MY GOD it tickles my brain in just the right way so as to boost productivity. It's great how that can cancel out the ADHD when I have deadlines looming.

Video game music does the same thing. Death by Glamour gets me in the ZONE.