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Research for Ooloi’s input system turned up something I hadn’t expected. Igor Engraver’s Flow Mode – the modal, stateful keyboard entry that defined its way of working – has never been recreated. Not by Dorico, not by Sibelius, not by Finale, nor by any of the open-source projects. Twenty-three years on, the idea has simply vanished.
Flow Mode was straightforward. You pressed “.” once and staccato stayed active; crescendo and diminuendo wedges and slurs extended naturally as you continued writing. The commands mapped directly to the symbols – intuitive, fast, and oddly satisfying. When Igor died of business failure in 2001, the method died with it. There is no academic record, no terminology, no sign that anyone even remembered it existed. I had fully expected other programs to have copied this feature; it gives a five- to ten-fold increase in music-entry speed. Web forums on notation are full of people asking for faster, more fluent keyboard entry, yet without the vocabulary to describe what they want. They are looking for something they have never seen. So this part of Ooloi isn’t innovation; it’s recovery. The system worked. It was lost for reasons that had nothing to do with design. The decision to re-implement it, and the details, are now recorded in ADR-0032: Ooloi Flow Mode. What remains is to implement it – and to find Magnus Johansson, who just might still have the user manual.
8 Comments
Magnus Johansson
20/10/2025 21:45:39
I am here, Peter, and you can always reach me via the e-mail address I provide when commenting here. Of course I have the Igor Engraver 1.6 Manual.
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Magnus Johansson
25/10/2025 10:25:00
In ADR-0032: Ooloi Flow Mode, the note input method of Igor Engraver using the function keys is missing.
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26/10/2025 10:59:14
Great that you still have the manual, Magnus, You might actually be the most knowledgeable person on the planet when it comes to Igor Engraver.
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Magnus Johansson
26/10/2025 12:53:37
Thanks for your reply, Peter! I look forward to provide you with all the details. I also have documents on a possible further development of the function key variant of Igor's input mode, and on key bindings (and a key bindning editing scheme) for a Swedish version of Igor Engraver where a tie is input with "å" as in "bindeb**å**ge".
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Magnus Johansson
6/11/2025 12:16:39
Regarding the open question number 1 in ADR-0032: "1. Mode coexistence: Should Flow Mode and Click Mode be completely separate, or can user click during Flow Mode?". In Igor Engraver the modes are separate: clicking in the document in Flow Mode only repositions the caret; if you click an input tool the caret disappears and Flow Mode is left.
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Magnus Johansson
6/11/2025 19:16:28
Continuing with the Open Questions in ADR-0032:
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Magnus Johansson
1/2/2026 13:14:27
The music illustration in this blog article has been replaced with the image in the article "The Belly of an Architect".
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AuthorPeter Bengtson – SearchArchives
January 2026
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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.
Ooloi is currently under development. No release date has been announced.
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