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The action editor is a tool to operate on actions. Here you can alter and modify the existing ones, as well as add new actions from scratch. It represents the actions of a channel and it's composed of several horizontal widgets, each of them containing a specific action type.
All the widgets work the same way: you manage them with the mouse and you add, remove or shift the actions by clicking on them.
|left click on empty area||add an action|
|right click on action||remove an action|
|left click + drag on action||move the action or resize it|
|right click + drag on empty area||vertical scroll, if the widget has scrollable content|
The zoom buttons in the upper right corner of the window allow to magnify or reduce the view of all the widgets. The grid tool shows a visual grid over the beat cells; the small check button on the right enables snapping.
At the moment the action editor allows to manage the following action types:
The start/stop widget works only for those channels set in oneshot mode (); if you open the editor for a channel set in loop mode, the widget will be disabled. Actions are represented in different ways:
The action type selector changes the action type you would add by left-clicking on an empty area.
The volume envelope widget handles volume changes. It ranges from 0 (bottom, silence) to 1 (top, full amplitude). Click on the first or last point to erase the envelope completely.
Available only for MIDI channels, the piano roll widget handles MIDI notes. It represents the full set of 128 notes (0-127) with 11 octaves ranging from C-1 (or C0) to G9 (or G10).
It can be vertically resized by dragging the lower edge up and down. Left-click on an empty space and drag it to move the grid up and down.
Starting from version 0.13.4 the piano roll editor is able to cope with wrong MIDI events, such as two Note On next to each other. We call them orphaned MIDI events and they look like an empty rectangle with fixed width.
You can't do much with an orphaned MIDI event, except for deleting it by right clicking on it. Useful to clean up a MIDI mess.
Available only for MIDI channels, the velocity widget lets you change the overall volume of the MIDI note. Values range from 0 (silent) to 127 (maximum loudness). Each point in the velocity widget matches the corresponding note in the piano roll editor.