OpenMusic

Visual Programming | Computer-Assisted Composition

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Rulers and Grid

Rulers

Function

The maquette editor has two rulers :

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Zoom

The scale of each ruler can be increased or decreased manually to zoom in or out, vertically and/or horizontally in the maquette.

To modify the scale of a ruler :

  1. click on a ruler to view the double-arrow cursor

  2. keep pressing while scroling the mouse.

To zoom in scroll the mouse upwards or rightwards. To zoom out, scroll it downwards or leftwards.

Grid

Displaying and Resolution

To display the grid of the maquette editor, press g .The grid’s resolution is calculated automatically, according to the zoom scale.

Quantization and Snap to Grid Option

The quantization allows to snap boxes to the grid when they are moved manually. The quantization of the ordinates axis can be defined with positive integers.

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The Metric Ruler : Rhythmic Parameters of the Maquette

The metric ruler displays measures and beats. It can be shown at the top of the maquette editor.

To display the metric ruler :

  1. Ctrl / right click in the maquette

  2. choose Show / Hide Metric Ruler.

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The metric ruler has three parameters :

To define the musical parameters of the maquette, double click on the metric ruler.

Note that complex or irregular meter changes, which cannot be expressed by a single pattern, require a thorough expression, measure by measure…

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Snap to Metrics

The ” Maximum Subdivision” frame takes a metric quantization unit.

For instance, “64” represents a 64th note subdivision, that is : .

For instance, “12” represents a triplet’s fourth note subdivision, that is : .

Here, we defined the following pattern : ((6 8) (3 8) (3 4) (6 4))
and chose the "Repeat Last Measure" option.

Here, we defined the following pattern : ((6 8) (3 8) (3 4) (6 4)) and chose the “Repeat Last Measure” option.

Grid and Metric Ruler

The grid fits the measure unit of the metric ruler.

Memento : Subdivisions

= 1; = 2; = 4; = 8; = 16; = 32; = 64…

References :

  1. Subdivisions of the Whole Note

Memento :

= 1, = 2, = 4, = 8, = 16, = 32, = 64

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