the soundtrack

fourteen songs for a private ooo — spin side A when the sun leaves the observatory, side B when it comes back.

side a sundown

the walk-in, the meeting, the slow reach.

01

tombstone lullaby

warm hum through cemetery grass — the moment marceline's bell hums instead of rings.

3:12 72 bpm Amin felt piano · vinyl crackle
a soft little loop in Amin — spun up right here, no file needed
02

pretty girls make graves

mercy's theme — chest-tat swagger, black boots on wet leaves.

2:58 96 bpm Dmin baritone guitar · brush kit
a soft little loop in Dmin — spun up right here, no file needed
03

plain hero, plain shirt

seth's theme — one clean guitar figure, no reverb, no showing off.

2:41 88 bpm Gmaj nylon guitar · room hush
a soft little loop in Gmaj — spun up right here, no file needed
04

the umbrella observatory (8:14 pm)

signal turning on — analog synth pad, the moment the broadcast lights up.

4:04 104 bpm Emin juno pad · tape delay
a soft little loop in Emin — spun up right here, no file needed
05

skyla in motion

running feet, freckles, tomboy grin — skyla's theme, tank top and dark denim.

2:47 128 bpm Amaj upright bass · handclaps
a soft little loop in Amaj — spun up right here, no file needed
06

patrick, sitting still

the anchor — carved-wood theme, slow flannel warmth, one bell note.

3:22 64 bpm Cmaj upright piano · felt hammers
a soft little loop in Cmaj — spun up right here, no file needed
07

miranda quotes the frost

cardigan, gold-frames, cold coffee — miranda's theme, a bookmark you can hear.

3:01 80 bpm Fmaj clarinet · vibraphone
a soft little loop in Fmaj — spun up right here, no file needed

side b sunrise

the letter written back, the map redrawn, the promise kept.

08

rose necromancer queen

mercy standing tall — thorned strings, gold trumpet, tombstones as a crown.

3:44 92 bpm Bmin strings · single trumpet
a soft little loop in Bmin — spun up right here, no file needed
09

letters from bloomington

the letters/ page in audio form — soft envelopes, a pen scratching, a smile you can hear.

3:18 76 bpm Dmaj rhodes · brushes
a soft little loop in Dmaj — spun up right here, no file needed
10

marceline drinks the color pink

tiny cat, big fang — playful pizzicato, one bell, a purr underneath.

2:12 120 bpm Gmaj pizzicato · glockenspiel
a soft little loop in Gmaj — spun up right here, no file needed
11

bramble-rose (skyla, when happy)

the tattoo blooming pink — skyla's b-side, laughter caught mid-run.

2:55 112 bpm Emaj acoustic guitar · shaker
a soft little loop in Emaj — spun up right here, no file needed
12

the anchor holds

patrick's b-side — the box of carved things under the bed, opened once.

3:36 70 bpm Amaj cello · wood block
a soft little loop in Amaj — spun up right here, no file needed
13

quiet ooo

private-domain hush — the whole world logged out, just this map, just us.

4:22 60 bpm Fmaj ambient pad · vinyl
a soft little loop in Fmaj — spun up right here, no file needed
14

home theme (mercy & seth)

the last track — both themes laid over each other, tender, sincere, no bow on top.

4:58 84 bpm Gmaj piano · nylon guitar · low strings
a soft little loop in Gmaj — spun up right here, no file needed
style guide + mood board

overall vibe

adventure time + webtoon hybrid, translated into sound. every track carries a bold 3px outline in the arrangement — one instrument stands in the foreground, everything else in cel-shaded 2 or 3 tones behind it. no orchestral show-off, no maximalism. felt piano over grand, brushes over crash, one bell over a whole percussion rack.

side a — sundown (tracks 01–07)

  • tempos 64–128 bpm, mostly minor keys with warm major exceptions for seth (03) and miranda (07).
  • always a slow reveal — arrangements start with one voice and add one layer at a time.
  • vinyl crackle sits under every track like the umbrella observatory sits under the sky.

side b — sunrise (tracks 08–14)

  • keys open up. more majors, more air, more color-drinking. the palette warms from purple to gold.
  • character themes reprise — mercy (08) answers 02, skyla (11) answers 05, patrick (12) answers 06.
  • track 14 is the only one where mercy and seth's themes touch. do not remix.

character sound cues

  • mercy — baritone guitar or low strings, gold trumpet accent, one thorn (dissonant string bend) per track.
  • marceline the cat — one bell that hums (long tail, no attack), pizzicato, a purr synth under 80 hz.
  • seth — one clean nylon guitar figure, dry room, zero reverb, zero effects. plain shirt, plain sound.
  • skyla — upright bass + handclaps, tempo above 110, freckle-bright glockenspiel accents.
  • patrick — cello, wood block, one felt-piano note held longer than it should be.
  • miranda — clarinet + vibraphone, always ends on an unresolved chord (the bookmark).

production rules

  • bold outline: mix one voice +4 db above the bed on every track.
  • cel-shading: max three timbre layers at once. if a fourth wants in, mute one.
  • no drops, no builds, no fake climaxes. if a swell happens, it earns it.
  • everything mono-compatible — this plays on the observatory speaker, phone speakers, mercy's earbud.
  • keep the whole record under 48 minutes so it fits one vinyl side pair.

mood board — palette

purple#6b4a8b
hot pink#ee5b8a
coral#f5a85e
peach#fbc9a0
orange#f26e2e
rose#ee4b7f
mint#8fcb6b
sky#6d8fbf
gold#e8a64e
cream#fbeed2
ink#1a1a1a

the hum player

every card carries its own tiny music box — press hum it and the page spins up a soft loop in that track's key and tempo, right in the browser. no files, no buffering, nothing leaves the record sleeve. one hum at a time, like a real turntable.