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Denemo vs LilyPond: catalog facts
Denemo	LilyPond
Free Free and open source.	Free Free and open source under the GPL-3.0-or-later licence.
Windows, macOS, Linux	Windows
Publication-quality engraving through LilyPond Input by keyboard, MIDI or microphone	High-quality engraved output Plain-text input that works with version control
Editing view differs from the final typeset score Workflow is less familiar than mainstream notation programs	Text-based input has a learning curve No built-in graphical score editor
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.