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Old 06-20-2021, 05:21 AM   #1
Kabraxis
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Default [MIDI Editor | v6.29] Key Snap resets when playhead moves

Key Snap option resets to option 1 (C Major) when the playhead moves via note selection or manually.


(While at there, how about adding "Project Default Scale" to project options?

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Old 06-20-2021, 06:34 AM   #2
schwa
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If the MIDI* does not contain any key signature events, changing the cursor position will not change the currently active key signature and the key snap dropdown will not change.

If the MIDI does contain key signature events (either because there were key signature events in an imported MIDI file, or because key signature events were created in REAPER's notation editor), changing the currently active key signature will edit the most recent key signature event, and the key snap dropdown will change if the cursor moves to a position that has a different active key signature.

If you switch to notation view, key signature change events will be notated, so you can see them and delete or edit them.

* note that key signature events may be embedded in individual MIDI events or stored at the project level, depending on the MIDI editor preference View > Notation view options > Key signatures > Key signature changes affect all tracks. The MIDI editor interacts with key signature changes the same way regardless of which way they are embedded, except in MIDI editor list view, which will only display the literal MIDI key signature events if they are stored per-track, rather than for all tracks.
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Old 06-20-2021, 08:44 AM   #3
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Hey schwa,

Top lane in CC view in the gif is "Notation Events" view. As you can see, there's no Key Signature events created there. "Key signature changes affect all tracks" is also disabled.

I double checked the each MIDI item in the project and couldn't see any Key Signature Events.

In an empty project, I see a Notation Type event with "root 10 dir -1 notes 0x6AD" Reaper data created. Could it be there are ghost events in my project?
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Old 06-20-2021, 09:07 AM   #4
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If you have "key signature changes affect all tracks" disabled (which is not the default, because it's unusual to have simultaneous playback in different key signatures), key signatures will be stored per-media item either as native MIDI key signature events, which can only be viewed in the MIDI event list viewer, or if the key signature is unusual and cannot be specified as a native MIDI key signature event, the change will be stored as a REAPER notation event.

If you're only ever changing the key signature via the MIDI piano roll key snap dropdown, the change should only ever affect the editor itself. But if you are changing the key signature by right-clicking the staff in the notation editor, that will insert a key signature event that the key snap dropdown will then chase, even if you then switch to the piano roll view.

It might help if you could record a screen capture of the behavior you are seeing in a previously empty project?
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