LMMS / LMMS/lmms

Add musical notation on piano-roll

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enhancement
Dominant language
C++
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Forks
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Avg merge
2d 13h
Merged PRs (30d)
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Description

### Enhancement Summary

Musical notation / Numerals is important for composing and for using borrowed chords. Other DAWs like Pro-tool, Bitwig and Ableton has it.
I think Ableton' implementation is fully satisfying, There simply just a toggle that changes key-names to degrees. (There are no reason to actually use Romans, even though that would be correct)
Here is a mockup for Amin:

Image

Each scale-degree is numbered and extending the triade is easy and logical.

### Implementation Details / Mockup

Perhaps it could be an option to add numerals to the keys, when the user select the scale

### Please search the issue tracker for existing feature requests before submitting your own.

- [x] I have searched all existing issues and confirmed that this is not a duplicate.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the piano-roll UI and the code that handles the currently selected scale. Review the proposed toggle and the Amin mockup before deciding how scale degrees should be displayed. Done means the piano roll can show musical numerals as an option when a scale is selected, with coverage for the supported display behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
desktop
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
35/100

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