react
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react
React is a JavaScript library for building user interfaces with declarative, component-based, and cross-platform design.
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FR-AI / ANALYSISWhy it is worth attention
It runs entirely offline as one HTML file, requires no server or installation, and offers diagram, flowchart, icon score, and text-list views alongside JSON/CSV/PNG/PDF export.
Who it is for
- Worship band leaders and music directors
- Church tech and multimedia teams
- Solo musicians who prepare setlists
- Music educators teaching arrangement concepts
Use cases
- Mapping song sections and assigning instruments for rehearsals
- Creating printable icon scores and PDFs for live performance reference
- Exchanging arrangement data between band members via JSON files
- Archiving and backing up arrangements without cloud dependency
Strengths
- Operates completely offline after downloading a single HTML file
- Supports four distinct visual representations of arrangements
- Allows import/export in JSON, CSV, PNG, and PDF formats
- Stores data in browser localStorage with no backend required
Considerations
- Limited to eight instruments per arrangement
- No cloud sync or multi-device collaboration built in
- Requires a modern browser and enabled localStorage for persistence
README quick start
Getting Started
Description
Arranger v3.4 is a web-based planning tool for worship bands, helping musicians map songs, organize setlists, and create clear arrangement references for rehearsals and performances.
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