Metric 01
48 hrs
first demo turnaround
FRESH SOUND
Music That Fits Brands
Kyoku Soukai writes custom music, jingles, and sound design for launches, podcasts, games, and videos. You get clear files, fast notes, and audio that fits the brand.
Metric 02
120+
tracks, jingles, and cues made
Metric 03
4.9/5
client rating from 146 reviews
HOW IT WORKS
A Clear Four-Step Flow
Original music for ads, films, apps, and launch videos.
2-3 min track
Custom Music
From ¥180,000
Original music for ads, films, apps, and launch videos.
15-sec hook
Brand Jingles
From ¥80,000
3 cue pack
Podcast Intros
From ¥60,000
01Game-ready
Sound Design
From ¥100,000
SFX, UI tones, and scene layers for motion and games.
02Per track
Mixing & Mastering
From ¥40,000
Clear, loud, balanced audio for songs, ads, and podcasts.
03Loop sets
Game and Video Scoring
From ¥150,000
Music cues that match cuts, action, and mood changes.
SERVICES
Sound for Brand Work
We learn your brand, audience, and where the music will play.
01
Listen and Brief
02
Write the Music
03
Record and Mix
04
Send the Files
CASE STUDIES
Work That Fits Brands
One 60-sec custom cue One revision round Stereo mix and master WAV and MP3 files Basic usage rights
One-time feeOne-time fee
Starter
From ¥180,000
- One 60-sec custom cue
- One revision round
- Stereo mix and master
- WAV and MP3 files
- Basic usage rights
Most popularOne-time fee
Signature
From ¥450,000
- Two 90-sec custom cues
- Brand jingle and sting
- Two revision rounds
- Stems and loop cuts
- Podcast intro and outro
- Broadcast-ready mix and master
Quoted per projectQuoted per project
Scale
From ¥900,000
- Three music cues
- Full audio brand kit
- Game and video score cues
- Sonic logo and stings
- Three revision rounds
- Source stems and file map
WHAT CLIENTS SAY
Kind Words From Clients
A 32-second cue gave the demo a clear start and end.
SaaS
NOVA App Launch Theme
A 32-second cue gave the demo a clear start and end.
Food & Drink
Sora Brew Sonic Logo
Gaming
Indie Game Battle Score Set
Podcasts
Startup Podcast Intro Pack
Agencies
Agency Reel Sound Kit
Music direction
Aiko Matsuda
Melody and cues
Kenji Watanabe
Clean mix and master
Mina Sato
SFX and motion cues
Leo Tanaka
Proof
Customer notes
Verified
“Kyoku Soukai gave our launch film a clean beat and fast file handoff.”
Naomi Ishida
Marketing Lead, Kumo Labs
Verified
“The podcast intro feels calm, clear, and easy to use on every episode.”
Evan Park
Producer, North Star Media
Verified
“They tuned the music and mix so our app teaser hit harder on mute and sound.”
Mika Chen
Creative Director, Studio Loop
Service area
Tokyo Metro
Shibuya, Shinjuku, Minato, Chiyoda, Meguro
Area 01
Tokyo Metro
Shibuya, Shinjuku, Minato, Chiyoda, Meguro
Area 02
Kansai
Osaka, Kyoto, Kobe, Nara, Sakai
Area 03
Chubu and Tohoku
Nagoya, Hamamatsu, Sendai, Niigata, Kanazawa
Area 04
Remote Worldwide
London, New York, Singapore, Seoul, Sydney
Journal
Notes on Brand Sound
Computers Electronics and TechnologyAug 21, 2026
The delivery robot breakthroughs worth watching
Questions
Common Questions
Quick answers before visitors choose a product, service, or next step.
01What kind of audio do you make?+
We write custom music, brand jingles, podcast intros, sound design, and score cues for video and game projects.
02How fast is a first draft?+
Most briefs get a first draft in 3 to 7 business days, based on length and scope.
03Can you work with my agency?+
Yes. We can work with agencies, founders, and creators, and we can join your team call if needed.
04Do you handle mixing and mastering?+
Yes. We can clean, balance, and finish audio so it is ready for web, social, podcast, or ad use.
05What files do I get?+
You get WAV and MP3 files, plus stems or loop cuts when your plan includes them.
06Do you work outside Japan?+
Yes. Most work is remote, so we can handle briefs from anywhere in Japan or overseas.
Get Sound Tips
Get short notes on brand sound, brief writing, and file prep, sent once a month.