Composer Production OS is a connected Notion production management system built for composers and arrangers. It was created by a working composer / arranger in Japan, based on real-world production workflows across Project setup, Cue management, Versions, feedback, spotting, recording, delivery, and archive.
This public Product Guide provides an overview of the workflow and core features. It is intended as a reference for anyone interested in how the system works; after purchase, the full workspace is delivered separately through private Notion access.
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Get Composer Production OS
Ready to use the full workspace? The English Edition is available on Gumroad.
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About the origin of this system
Composer Production OS was not designed from the outset by a Notion specialist. Its creator is a working composer / arranger who originally had almost no Notion knowledge and gradually built the underlying system over roughly six years, adding pieces whenever real production work exposed a new need.
The current product version was then reorganized and generalized with the help of ChatGPT so it could work beyond one person's workflow. Its starting point is not Notion expertise for its own sake, but practical questions from music production: what needs to be tracked, where information tends to scatter, and how to keep a scoring workflow moving.
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A quick walkthrough of the complete workflow: Dashboard → Project → Cue → Version → Review → Delivery.
Getting Started
See schedule, active projects, production focus, feedback, and reference directories in one place.
Dashboard Overview
Create a Project Workspace and set the core information for a new job.
Create Your First Project
Create cues inside a project and manage each piece of music from its own workspace.
Add & Manage Cues