manual/_manual/12_working-with-midi/01_fundamental-concepts.html

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---
layout: default
title: Fundamental Concepts
---
<p>Ardour's MIDI editing is based on two basic principles:</p>
<ol>
<li>Editing should be done without having to enter a new window</li>
<li>
Editing should be able to carried out completely with the keyboard,
or completely with the mouse, or with any combination of the two.
</li>
</ol>
<p>
Currently, MIDI editing is primarily restricted to note data. Other
kinds of data (controller events, sysex data) are present and can be
added and deleted, but not actually edited.
</p>
<h2>Fundamentals of MIDI Editing in Ardour 3</h2>
<p>
MIDI, just like audio, exists in <dfn>regions</dfn>. MIDI regions
behave like audio regions: they can be moved, trimmed, copied (cloned),
or deleted. Ardour allows either editing MIDI (or audio) regions, or MIDI
region content (the notes), but never both at the same time. The
<kbd>e</kbd> key (by default) toggles between <dfn>region level</dfn>
and <dfn>note level</dfn> editing, as will double-clicking on a MIDI region.
</p>
<p class="note">
One very important thing to note: editing note information in Ardour
occurs in only a single region. There is no way currently to edit in note
data for multiple regions at the same time, so for example you cannot select
notes in several regions and then delete them all, nor can you copy-and-paste
notes from one region to another. You can, of course, copy and paste the
region(s), just as with audio.
</p>