A leitmotif (/ˌlaɪtmoʊˈtiːf/) is a musical "phrase" or melody, re-used in multiple songs to associate a tune with a person, event, or place. Leitmotifs occur several times in the Deltarune OST.

Timestamps found below are approximate to one second and follow the timing used in the Bandcamp version of the soundtrack.

Don't Forget

This leitmotif can be considered the main theme of the first chapter of Deltarune; it's the end credits song and the most common melody of the chapter.

  • Laura Shigihara - Don't Forget
  • Beginning – 0:06-0:38
  • School – 0:13-0:14, 0:27-0:40
  • Field of Hopes and Dreams – 0:53-1:40, 2:18-2:26, 2:33-2:41
  • Scarlet Forest – 1:59-2:08
  • THE WORLD REVOLVING – 0:20-0:40, 1:07-1:09, 1:17-1:19, 1:21-1:41
  • Friendship – 0:00-1:30
  • Your Power – 0:01-0:10
  • A Town Called Hometown – 1:00-1:26
  • You Can Always Come Home – 0:57-1:12, 1:18-1:35
  • Dog Check – 0:34-0:41

Lancer

This leitmotif relates to Lancer and King, and appears in six soundtracks.

  • Lancer
  • I'm Very Bad – 0:00-0:13
  • Thrash Machine – 0:01-0:50
  • Vs. Lancer – 0:00-0:40
  • Card Castle – 0:30-1:01
  • Chaos King – 0:41-1:08

Minor Leitmotifs

The Legend

This minor leitmotif relates to Ralsei's legend and appears in three soundtracks.

  • The Legend
  • Empty Town
  • Chaos King – 1:08-1:31
  • Ralsei's lullabies

The Legend (bassline)

The Legend also hosts a recurring bassline that appears in five soundtracks.

  • The Legend – 1:29-1:48
  • Empty Town
  • Lantern
  • The Circus
  • A Town Called Hometown – 0:00-0:15, 0:20-0:34, 0:40-0:55,1:01-1:24

Card Castle

This minor leitmotif relates to King and his residence and appears in three soundtracks.

  • Card Castle
  • Basement
  • Chaos King – 0:00-1:07

Other

  • Scarlet ForestQuiet Autumn – 0:21-0:49
  • SusieVs. Susie – 0:53-1:21
  • The Chase - 0:14 – Vs. Lancer - 0:03

Undertale

In the DELTARUNE Chapter 1 OST, a few leitmotifs from Undertale have been referenced.

Once Upon a Time

The Once Upon a Time leitmotif is used mainly in Hometown.

  • Beginning – 0:38-0:52 (Part 3)
  • You Can Always Come Home – 0:19-0:57, 1:19-1:33 (Part 1, Part 3)
  • Before the Story (Part 1)
  • Dog Check – 0:27-0:33 (Part 2)
  • Card Castle (Part 3)

Determination

The Determination leitmotif has been used in the Dark World.

  • Rude Buster – 0:27-0:48
  • Lantern – 0:43-1:05

Snowdin

The Snowdin leitmotif has been used in Hometown.

  • School – 0:44-1:19
  • A Town Called Hometown – 1:27-1:46

Your Best Nightmare

Your Best Nightmare has been used in the Dark World.

  • Imminent Death – 0:04-0:18
  • Vs. Susie – 0:06-0:19, 0:23-0:52, 0:54-1:21 (Piano)

Other

Cucumber Quest

Nightmare Knight

Parts of Toby Fox's Nightmare Knight (0:48-1:11) from Cucumber Quest have been used, in various places throughout the game.

  • The Door
  • The Chase – 0:11-0:33
  • THE WORLD REVOLVING – 0:02-0:05, 0:07-0:10, 0:12-0:15, 0:17-0:19
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