"Your Best Nightmare" is track #79 on the album UNDERTALE Soundtrack by Toby Fox. Within Undertale itself, the track serves as the initial battle theme of Photoshop Flowey.
The track is split into multiple segments within the game's files, with the relevant files' names all beginning with "mus_f_".
Composition[]
The track is at 95 BPM. From the beginning of the track until the alarm before the first soul section, the track's time signature is in 6/4. the rest of the track is in 4/4 until the beginning section repeats at 3:28 into the track. Tonally, the song is very complex, with each section being in its own key. the first section (0:22 to 0:53) has a completely atonal bassline, with a melody that is simple, but also doesn't easily fit into any key. The light blue soul section (0:53 to 1:09) is in E-flat Ionian (Natural Major). the majority of the orange soul section (1:09 to 1:26) is in F Major, incorporating some elements from Natural Major (Ionian), Lydian, Mixolydian, and Aeolian. The final bar of the section resolves to A-flat Major. The next non-soul section (1:26 to 1:55) is in D major, incorporating elements of both Mixolydian and Ionian in the main melody. the bassline is in D major, but with many more chromatic notes being used. The blue soul section (1:55 to 2:11) uses the A Wholetone scale. the purple soul section (2:11 to 2:28) is in G Ionian or A Dorian. The next non-soul section (2:28 to 2:55) consists of a repeating 2 beat atonal melody and bassline that repeats four times before repeating another four times but modulated up a semitone. This 4 bar sequence loops for the majority of the part. The green soul section (2:55 to 3:12) is in E Phrygian. The yellow soul section (3:12 to 3:27) is in D# Aeolian (Natural Minor). The next non-soul section (3:27 to 4:00) is the same as the first section after the intro. The unused "mus_f_part3" section is atonal.
There are currently 20 rips of "Your Best Nightmare" on the channel. This includes 10 rips of the whole track, as well as 10 rips of individual segments.
