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emuso

Basics for using the instrument. Quick start. (5 mins)

Jerry

Introduction

Emuso comes with three virtual instruments: 6-string guitar, 4-string bass, and piano. Emuso also comes with a libary of scales, chords,  and intervals, accessed via menus in the Toolkit.  You can also invent your own shapes.  Each of these appears as a collection of notes at various frets, or piano keys, using coloured circles.  There can only be one of these collections on-instrument at any one time.  We’ll use the word “shape” to refer to this collection. A note collection always includes the “anchor“.  The location of the anchor  determines the start note for a scale, or where a chord is rooted.  The anchor is also used for moving the shape around the instrument. More on this below.

Here you will learn how to choose piano, or  left- or right-handed guitar and bass; how to create, edit, and move around chords and scales; how to invert chords; how to invert scale patterns, and how to select notes from these to be used as a melody.  You will also learn about the interval strip and the pitch strip.  If needed, please remind yourself in the intro quickstart about the Play Style widget including showing it, hiding it, and dragging it.

Each of the following sections can be expanded by clicking on its heading, and collapsed by clicking on the heading again.

 

We’ll start on guitar.

The anchor

Even when there is no note collection, the guitar always has an easily recognised circle on it which we call the anchor. This is a solid white circle, with some text showing on it. Click the eye-ear icon to see this, with the quick start in the left pane, and the instrument in the right pane. Follow the instructions that appear, to learn how to move the anchor around.

The anchor location also determines what notes are created using the “Chord”, “Scale” and “Interval” menus in the toolkit. Let’s have a quick look.

The interval and pitch strips

As you move the mouse over instrument locations (frets or piano keys), the interval strip shows the “distance” from the anchor to that location. The pitch strip shows the name of the note (produced at) that location, and can be used to move the anchor. The next interaction will teach you these. These two strips are are combined into one widget that can be left-dragged with mouse to reposition it.

The interval is always at the top, showing twelve buttons. The pitch strip is underneath it. Here, it just shows one button, with name of the anchor note.

Here it is expanded. The “Reroot” button is explained a bit later.

Let’s take a look … you’ll also learn how to move this widget around.

How to create, move and delete notes

You’ve already learned about using the anchor to move the entire shape.

An individual note is created by clicking an empty location on-instrument. Clicking an occupied location deletes the note there. Left-drag a note to move it.

This next interaction asks you to create, move and delete individual notes. You will find that the anchor changes to a solid red colour when a note is created at the anchor. Remember, when coloured white, the anchor is “empty”, so it doesn’t contribute a note to the note collection. The you can do exactly the same to change a library construct.

How to select notes

Right click each note you want to select. Type ‘u‘ to unselect last selection. Type ‘U‘ (capital U) to unselect all selections. A note can be selected several times. The order of selections is remembered. This can be used to build a melody (to be loaded into RhythmX, which you will start to learn about in the next guide) . Here’s an example of building melody with repeated notes. Set the Play Style widget for melodic playback. You may want to drag it under the instrument so it’s nearer where you are working with the instriment.

Choosing an instrument

This can be done via the menu or via the keyboard shortcuts ‘g‘ for guitar, ‘b‘ for bass, and ‘p‘ for piano. This next interaction creates a chord on guitar. Try switching to piano and back.

 

Next

The next quick start starts looking at emuso’s features for exploring and practicing rhythmic concepts and time keeping.