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Piece Window ADR

7/7/2026

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Two days from now it'll be two years since the first Ooloi commit. I've been working on the Piece Window, which is where a piece becomes visible and where you shape it: setting it up, creating scores and parts, and much more besides. It's a rich window, rich enough to do away with the modes and dialogs other programs need for this kind of work. And somewhere in the middle of building it, I noticed the thing had no documentation of its own. It was scattered across fourteen ADRs.

No more. Here's the fifty-fourth architectural decision record for Ooloi: ADR 0053: Piece Window and Piece Preferences.

See you on Thursday. There should be a video by then, too.

2 Comments
Magnus Johansson
7/7/2026 13:58:26

Thanks for the update. I had begun thinking you were out windsurfing on Mälaren and not only through parentheses.

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Peter Bengtson
7/7/2026 14:10:02

;) Not at all - yesterday was the start of eight weeks of holiday. So you’re right: I’m windsurfing, but it’s still through parentheses. And the view is stunning.

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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 an open-source desktop music notation system for musicians who need stable, precise engraving and the freedom to notate complex music without workarounds. Scores and parts are handled consistently, remain responsive at scale, and support collaborative work without semantic compromise. They are not tied to proprietary formats or licensing.
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Ooloi is currently under development. No release date has been announced.


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  • Home
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