19824
This is a great idea. You should explore this half-speed thing further!
Warning: the song doesn't honor its name.
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This song was composed in Famitracker, no expansions used, at a much higher speed, 120 Hz engine speed, and 96 KHz sample rate. Later, it was loaded in Audacity, its rate was lowered to 44.1 KHz (notice how it's lower than the half of the original rate!), and equalized a little bit.
Gotta love that distorted percussion.