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Teoria Musical
Discontinuous selection
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Discontinuous selection

The selection modes

As we saw the "Edit" menu applies actions on the selection.

You create the selection using the "Select" tool in the "Edit" tool palette. The selection can be continuous (by area) or discontinuous (by symbols).
The continuous selection is defined by a start and end time position. All symbols included in this area were processed when performing a copy/paste/erase/add operation, or any other operation related to the selection range.

For example, here is a continuous selection:

The two first chords are selected.

The discontinuous selection enables to select symbols individually, for example two notes among the four in a chord, all and only the rests in a bar, etc.
For example, here is a discontinuous selection:

Only two notes are selected by chord.

Note : The discontinuous selection is available from  Melody Assistant 6.5 and Harmony Assistant 8.5.

Creating a discontinuous selection

To define a discontinuous selection, switch to "Select" mode ("Edit tools" palette) and click the symbols (notes or rests) while holding Shift key down or right mouse button.
Symbol color changes: it is selected. Perform the same operation on another symbol, you create a set of selected symbols.
Note the selected symbol color can be changed from the Global settings panel, "Screen" panel.

Removing a symbol from selection

If you click again the symbol while Shift key is held down,or right mouse button, it is deselected.
To deselect all the symbols, click anywhere in the score without holding Shift key down.

Selecting several symbols in one click

To select a group of symbols, click anywhere while holding Shift key down, and move the mouse with button down. A rectangular area is drawn, and symbols included in this area are selected. As for the individual selection, this area selection toggles symbols from selected to deselected state.

Applying actions

Actions that can be applied to a discontinuous selection are the same as those applied to a regular selection range.
For example:
"Edit>Copy" copies selected symbols to the clipboard. You can then paste them to another place, by clicking the required location to define an insert point, then use "Edit>Paste"
"Edit>Erase" erase the selected symbols.
"Edit>Appearance>General" changes the appearance of the selected symbols
"Edit>Pitch change" changes the pitch of the selected symbols
If you change the stem size of a selected symbol while holding Shift key down, stem size for all selected symbol is changed at the same time.
If you move an accidental while holding Shift key down, all selected accidentals are moved.
And so on...

Moving a group

Discontinuous selection enables to move a group of symbols.
When dragging any symbol from a discontinuous selection, the whole set of selected symbols is moved.
This move can be only vertical: you change all note pitches.
It can be horizontal: you move these notes to another time position in score. This move can be performed within the same staff or to another staff.
The note you selected to move the whole group is the "master note".
When the master note is in chord with another note of the score, the "+" symbol appears. This means the group will be added to existing notes to build chords, if possible.
Otherwise, the group will be inserted to the selected position and the existing notes shifted.
Contrarily to copy/paste which preserves note pitches, moving a group preserves the graphical appearance of the symbols on screen.
If you include several notes into a regular (continuous) selection range, then click it with Shift key down, you change the regular selection range into a discontinuous selection, and you can moves, insert or add theses notes as explained above.

Special paste

If an insertion point is present, when a group of symbols is copied to the clipboard, then pasted, the group is pasted at the insertion point position. It is the usual behavior.
But, before pasting, if at least one symbol is selected through discontinuous selection, the clipboard content is added to the existing symbols from the time position of this symbol. In this case, the original note pitches are preserved instead of their graphical appearance.

Special consideration

Discontinuous selection can be applied as well to standard or drum staves, guitar tablatures and grid drum staves.

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