Can I quantize to a scale in Reaper?

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That is, can I select a bunch of notes in the midi editor and nudge them all into a given key or scale?

If so, how?

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mrcleats wrote: Thu Sep 04, 2025 7:02 pm Like this?
https://www.reapertips.com/post/5-usefu ... -in-reaper
Thanks, I couldn't see how to use the snap function to 'quantise' existing midi. That's what I'm looking for

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Also if you press T in the MIDI editor you get the Transpose MIDI dialog.

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Set a scale in "Key snap" in the piano roll, select all the notes and move them up/down. They will snap into the scale.

Or this, as in the like above:

How to quickly change the key of your notes
If you're curious about how your notes would sound in a different scale, you can simply select a new scale from the "snap to key" dropdown. Then, go to the Actions menu (shortcut: ?), navigate to the MIDI Editor section, and search for "Force selected notes into key signature". This action will move all the notes to match the new scale you assigned.
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Thanks

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