By Toby Fox tobyfox Bandcamp tobyfox Twitter toby.fangamer.com Other fwugradiation Tumblr.
Released 9/15/2015.
Duration: 0:50.

Listen on Bandcamp, YouTube, or Spotify.

Also released as:

• (20219/17/2021; about 6 years later) sans. (DELTARUNE Chapter 2 OST)

Tracks that reference sans.:

From Beyond:

• It's Raining Somewhere Else by Toby Fox
• Song That Might Play When You Fight Sans by Toby Fox
• Bring It In, Guys! by Toby Fox