"Super Mario Bros. Music - Ground Theme (NES Classic Edition)" is a high quality rip of the NES Classic Edition version of "Ground Theme" from Super Mario Bros..
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This is an arrangement of "Nightmare Night" by WoodenToaster & Mic the Microphone using the advertised track's instruments. At 0:11, the vocals to "Nightmare Night" are mashed up with the track with a bit-crushed filter applied.