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The Matrix editor

Table of Contents

The Grid and Quantize controls Inserting notes Typing notes with the PC keyboard Entering notes using a MIDI keyboard Selecting notes Filtering the selection Moving and copying notes

The Rosegarden matrix editor enables you to view and edit music in a simple, logical format: each note represented as a block in a grid, at a height corresponding to the pitch.

Rosegarden's matrix editor

Each matrix editor window shows a single segment. To edit a segment, just right-click on it in the main canvas and select the matrix editor from Segments โ†’ Open in Matrix Editor (M). Alternatively, you can configure Rosegarden to make the matrix editor the default editor available when you double-click on a segment.

The Grid and Quantize controls

The matrix view contains Grid and Quantize menus in its main toolbar.

The Grid menu controls the size of the visible grid in the background of the matrix view, as well as the time resolution used when entering and moving notes. After you set it to a particular time value, the normal note insertion and drag operations will then snap automatically to grid points spaced at that time width. You can override the snap-to-grid effect temporarily by holding down Shift during editing, or you can disable it by setting the Grid menu to None.

The Quantize menu works rather differently. Rather than controlling the behaviour of other editing tools, it actually performs an action. When you change the value in this menu, the selected notes โ€“ or the whole segment if nothing is selected โ€“ will immediately be quantized using a grid quantizer of the chosen resolution.

The Quantize menu also shows you continuously what resolution the current segment or selection is quantized to. For example, if you select a set of notes that start on consecutive quarter-note beats, the Quantize menu will update itself to show 1/4, as this is the coarsest resolution consistent with the existing quantization of the current selection.

Inserting notes

The simplest way to enter a note in the matrix view is to use the mouse. To do this, select the pencil tool on the toolbar, and then click and drag on the matrix editor. The note will be entered at the time and pitch corresponding to the point you click at, and will have a duration corresponding to the distance you drag before releasing the mouse button.

You can also draw notes using the select tool , by clicking and dragging either with the middle mouse button, or with the left mouse button and Ctrl pressed.

By default, the time and duration are snapped to a particular grid unit, according to the Grid setting on the View menu or the toolbar. You can prevent this effect by holding down Shift while clicking and dragging.

 
 
doc/matrix-en.1263769462.txt.gz ยท Last modified: 2022/05/06 16:07 (external edit)
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