Tune was a character recommended by BFDIDubita23, and the first ranked recommended character in Insectophobe's Nightmare 3. Tune is seen greatly engulfed in music, or whatever is playing in their headphones. Tune also made an appearance in BFDIA 5b, next to Waffle, where Tune must be used to get the Win Token. Tune doesn't talk very much, according to Waffle.
Tune appears to be an eight note, a musical note. Tune is black with gray and red headphones.