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Contributing to Ooloi

30/3/2025

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One of the central design principles behind FrankenScore/Ooloi is modularity. There is a small core, written in Clojure, and then there are plugins  which can be written in any JVM language such as Java,  Kotlin, Scala, JRuby, Jython, etc.

This architecture has far-reaching consequences for contributors. For instance, the open-source core can be contributed to and extended natively in Clojure – which expert Clojurians will appreciate. This way, contributors have full access to all aspects of the core engine.

But if you instead want to contribute to Ooloi using its plugin architecture, you can use any JVM language and production methodology. The API you'll be using lets you focus entirely on the musical task to be accomplished. You don't even have to know about things like transactions, concurrency, or memory management. You can safely work with the powerful musical abstractions the API gives you and let the efficient engine handle the rest.

And commercial entities will also appreciate that Ooloi's plugin mechanism supports paid, close-source plugins.

And as there is no loss in efficiency or speed, much of the Ooloi functionality will be implemented using plugins, including advanced playback, MusicXML support, virtual instruments, tablature, jazz notation, and much more. 

Read more about it in the updated and extended Development Plan.

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    Peter Bengtson –
    Cloud architect, Clojure advocate, concert organist, opera composer. Craft over commodity. Still windsurfing through parentheses.

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Ooloi is a modern, open-source music notation software designed to handle complex musical scores with ease. It is designed to be a flexible and powerful music notation software tool providing professional, high-quality results. The core functionality includes inputting music notation, formatting scores and their parts, and printing them. Additional features can be added as plugins, allowing for a modular and customizable user experience.​


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