LMMS / LMMS/lmms

Edit multiple tracks in the same piano roll

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#5,887 8 comments 4 reactions 0 assignees View on GitHub

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

### Enhancement Summary
I would like to be able to edit notes from multiple tracks in the same piano roll.
I previously used the midi editor which is also an open source project which sadly seems to be discontinued where you were able to see all the notes from all tracks in the same editor.
A drop-down would be cool where you can select which track is currently shown in the piano-roll.

#### Justification
I am often copy/pasting notes from other tracks and if I would be able to see all notes from all tracks at the same time, this would be a lot easier and would safe a lot of time.
Also it is easier to adjust the current track to the other tracks if you can see their notes.

#### Mockup
![](https://i.imgur.com/8mTPDVy.png)

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

The issue names no files or tests. Start by locating the piano-roll editor entry point and how it loads the current track's notes, then inspect how track selection is represented. Done should mean notes from multiple tracks can be viewed together while a track can still be selected for editing, including the requested track-selection control.

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
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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