OpenMusic Tutorials

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Tutorial 3: Building a scale

Topics

Constructing a scale using the dx->x function.

Key Modules Used

Note, Chord-seq, dx->x

The Concept:

Here we use dx->x to build a scale. dx->x takes a list of relative quantities and changes them into absolute quantities starting from a point we define. In this case, we’ll use it to define a scale (which is, after all, a set of relative intervals) which we can then build on any note.

The Patch:

Open the NOTE box (A) and pick the note from which you would like your scale to begin. Then lock it.

Enter a list of intervals in this box in order to construct a scale. Remember that an interval of 100 is equal to a semitone. In the example we’ve entered a major scale.

In the example, the Note outputs 6000 as its midic. The dx->x function starts with 6000 and adds, sequentially, the elements at its second input. This list of midics is put into the _lmidic_ input of the Chord-seq object. Remember, you can see the names of the inputs by command-clicking on the inputs themselves.

Evaluate the Chord-seq box to see your scale starting on your note.

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