Intermediate Chordacus

See the entire fretboard with Chordacus

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Using Chordacus with Pentatonic scales

Chordacus is a software tool that you can use to find chords, scales and arpeggios in different keys on the guitar fretboard.

All these images have the same colour coordination system in order for you to learn and remember the shapes as easily as possible.

In the intermediate course, you learn all your barre chords, this is when chordacus starts to become useful as you can move all the barre chords to different keys and shapes.

We also start studying the pentatonic scales. When you learn these you will still see the barre chord shape inside the scale shape.

Find out more below.

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I think the material is excellent. I’ve benefited so much. I’ve now begun to improvise with some confidence and have written songs that feel authentic. I can now develop musically in a broad and rich way. Your work has illuminated an exciting path forward.– Roger

C Major Pentatonic scale – E shape

Cesmap

Major Pentatonic in chordacus

Let’s start with looking at the E shaped barre chord and how it is developed into an E-shaped Major Pentatonic.

  • Chord notes (Root, minor 3rd, 5th) are red
  • Notes from the Major Pentatonic (2nd, 6th) are yellow

C Minor Pentatonic scale – Em shape

Cemsmip

Minor Pentatonic in chordacus

Here we can see the Em barre chord shape and how it is developed into an Em shaped Minor Pentatonic.

  • Chord notes (Root, minor 3rd, 5th) are red
  • Notes from the Minor Pentatonic are blue

Cm Blues scale – Em shape

Cemsb

The Blues scale in chordacus

Add a b5 to the minor pentatonic and you get the Blues scale.

  • Chord notes (Root, minor 3rd, 5th) are red
  • Notes from the Minor Pentatonic are blue
  • The b5 is dark blue

Cm Conspirian scale – Em shape

Cemsc

Conspirian in chordacus

By adding a maj7 to the Blues scale we get the Conspirian scale.

  • Notes from the Minor Pentatonic are blue
  • The b5 is dark blue
  • The maj7 is turquoise

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