Mysterious background music
114 mysterious tracks. Unresolved harmonies, eerie textures and slow pulses for mysteries, documentaries, puzzles and Halloween edits. Listen free. MP3 & WAV downloads come with Pro and Premium.
- Aquatic Synth Ambience
2:28Ambientdowntempo, synth-pad, synth
- Carnatic Phonk Flute
3:15Worldethnic-ambient, flute, acoustic-guitar
- Confident Hip Hop Arena
2:08Funkcinematic-hip-hop, synth, strings
- Dark Cyberpunk Synthwave
1:42Electronicglitch-hop, synth-bass, synth
- Distant Club Bell Drone
2:32Electronicambient-house, synth, synth-pad
- Doomsday Signal Drift
2:55Electronicsynthwave, synth, synth-pad
- Dreamy Synthwave Night
2:49Electronicsynthwave, synth, drum-machine
- Echoing Sleep Drone
2:24Electronicdowntempo, synth-pad, drum-machine
- Eerie Door Creak Drone
58.1sAmbientspace-ambient, synth-pad, synth
- Frightening Music Box Echo
2:28Ambientsynthwave, synth, synth-bass
- Heartbeat Metallic Splash
1:58Cinematiclo-fi-hip-hop, synth, drum-machine
- Infestation Chase Theme
2:45Cinematicchamber-orchestra, woodwinds, strings
- Korean Long Drum Dance
3:00Worldorchestral-fantasy, strings, woodwinds
- Microscope Focus Bed
2:19Electronicsynthwave, synth, synth-bass
- Muffled Spacey Scrape
1:39Electronicsynthwave, synth, synth-bass
- Mysterious Cinematic Journey
4:26Cinematiccinematic-world, woodwinds, strings
- Mysterious Neo-Classical Synth
4:35Cinematicneo-classical-electronic, synth, strings
- Mysterious Orchestra Fantasy
1:40Ambientcinematic-orchestral, piano, strings
- Mysterious Synthwave Night
3:17Electronicsynthwave, synth, synth-bass
- Mythic Harpy Descent
4:50Electronicsynthwave, synth, drum-machine
- Neon Palette Sketch
4:09Classicalchamber-music, piano, woodwinds
- Non-Melodic Piano Chords
2:27Classicalneo-classical-piano, piano, celesta
- Passionate Pipa Race
2:33Lunar New Yearcinematic-asian, guzheng, strings
- Pensive Piano Solo
2:21Classicalneo-classical-piano, piano, field-recording
- Poor Quality Violin Sketch
1:44Classicalneo-classical, strings, violin
- Raw Didgeridoo Drone
2:54Electronicsynthwave, synth, synth-bass
- Reverb Horn Triad
1:38Cinematicfantasy-orchestral, brass, strings
- Rising Dissonant Arps
1:49Electronicsynthwave, synth, drum-machine
- Slow Chill Frequency
3:41Ambientambient-downtempo, synth-pad, electric-guitar
- Somber Darksynth Fusion
3:29Electronicsynthwave, synth, piano
- Storm To Circuit Dread
2:00Halloweensynthwave, synth, synth-pad
- Suspenseful Hybrid Orchestral
1:41Cinematichybrid-orchestral, synth, strings
- Suspenseful Video Game Synths
2:25Electronicdark-synthwave, synth-bass, synth
- Tabla Practice Groove
1:57Worldmiddle-eastern-folk, flute, hand-percussion
- Tender Harp Romance
2:24Classicalneo-classical, piano, strings
- Ticking Heist Tension
2:55Cinematichybrid-orchestral, synth, strings
- Unsettling Electronic Experiment
2:28Electronicsynthwave, synth, synth-bass
- 30-Second Sleek Synth Pop
30.0sElectronicsynthpop, synth, drum-machine
- 60-Second Harp Documentary Cue
1:00Cinematicneo-classical, harp, strings
- Candlelit Acoustic Guitar Tale
2:00Halloweencinematic-acoustic, acoustic-guitar, strings
- Celesta Snowflake Dance
1:00Christmasmagical-orchestral, woodwinds, harp
- Cold Case Piano Underscore
3:00Halloweenepic-orchestral, piano, strings
- Creepy Carnival Accordion
1:00Halloweentheatrical-orchestral, accordion, woodwinds
- Glowing Synthwave Stream Outro
14.9sElectronicsynthwave, synth, synth-bass
- Haunted Harp And Flute
30.0sHalloweenfantasy-orchestral, harp, woodwinds
- Haunted Harp Lullaby
45.0sHalloweenfantasy-orchestral, harp, strings
- Haunting Cello Podcast Outro
14.9sCinematicdark-ambient, strings, cello
- Lo-Fi Haunted Study Beat
2:00Halloweenlo-fi-hip-hop, electric-piano, drum-machine
- Moonlit Porch Folk Fiddle
1:30Halloweenindie-folk, acoustic-guitar, violin
- Retro Synth Tech Logo Sting
3.0sElectronicsynthwave, synth, drum-machine
- Summer Night Ambient Bells
3:00Summerambient-synth, synth-pad, synth
- Synthwave Game Menu Loop
30.0sElectronicsynthwave, synth, drum-machine
- Tech Channel Synth Intro
12.0sElectronicelectro-pop, synth, drum-machine
- Trick-or-Treat Tiptoe Orchestra
1:30Halloweenwhimsical-orchestral, strings, woodwinds
Make your own version
Need another length or feel? Describe the track and change the instruments, tempo or mood.
Free credits when you sign up · generation uses your account balance · custom tracks follow your plan’s license.
Using mysterious music
Suspense is in the rhythm
A slow, repeating figure holds attention better than a melody. Loop a short section under a long explanation.
Pair it with sound design
A door creak or a wind gust on a cut makes a mysterious bed feel scored. The sound-effects library has both.
Mysterious music FAQ
Is this mysterious music free?
Free to listen, with no account. MP3 and WAV downloads come with Pro and Premium, and cover commercial use too, such as monetized videos, ads (including paid ad campaigns), client work, apps and games.
Can I use it in a monetized YouTube video?
Yes, on Pro or above. Downloads on Pro and Premium cover monetized videos. Sonilo does not register library tracks with YouTube Content ID.
Do I need to credit Sonilo?
No. Library tracks need no credit or attribution, on any plan. You can still mention Sonilo if you like.
What if I can’t find the right mysterious track?
Describe the one you need — instruments, tempo, mood, length — and generate it with Sonilo’s text-to-music. New accounts get free credits; custom tracks follow your plan’s license.
License
Listen to every track in this library for free. Downloading a track comes with Pro and Premium, and covers personal and commercial use: ads (including paid ad campaigns), client work, and monetized or sponsored content, with no revenue cap. Sonilo does not register library tracks with YouTube Content ID. On Pro and above you can also get a license certificate for any track here. Use a track only as part of a larger work of your own. You may not sell, share or give away the files on their own, bundle them into sound, sample or music packs, or upload them to other stock or library sites.
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