Learn Music Theory in 60 Seconds (Before Your Drummer Gets Bored)

Relative vs. Parallel Key Signatures on Guitar

Let’s make sure you understand relative and parallel key signatures in under 60 seconds. Understanding these concepts is the quickest way to upgrade your musicianship. You are going to sound real fancy with your music theory and your guitar playing, guitar riffs, and guitar solos.

And if you want to be real fancy, follow if you’re not following.

The Confusion Behind Key Signatures

You might be hearing all this talk about relative keys and parallel keys. To the beginner, that might seem relatively hard to imagine—you see what I did there?

Jokes aside, these are two distinct ways to look at how scales and chords relate to one another on the fretboard.

Parallel Key Signatures Explained

First, let’s start with the easy one: parallel.

The concept here is all about the starting note, or the “root.” Let’s say I have a G major that I’m writing in; the key signature is G major, so my scale is G major. But let’s say I want to do a parallel key to that.

To be parallel, it is going to start with a G. So, G major and G minor are parallels. They are parallel key signatures because they share the same root note but have different intervals (major vs. minor).

Relative Key Signatures Explained

Whereas relative means we have the same exact notes, but a different resolving note or chord. This is where many guitarists get their “aha!” moment regarding the fretboard.

An example of that would be G major and E minor. If you play the G major scale, you are playing the exact same notes as the E minor scale. The only difference is the tonal center—the note that feels like “home.”

The simple breakdown:

  • Parallel: Starts with the same note (e.g., G Major / G Minor).
  • Relative: Shares the same notes (e.g., G Major / E Minor).

Frequently Asked Questions

  • What defines a parallel key signature?
    • It starts with the same note (root) but changes the scale quality. For example, G major and G minor are parallels.
  • What defines a relative key signature?
    • Relative means we have the same exact notes but a different resolving note or chord.
  • Can you give an example of relative keys?
    • An example of that would be G major and E minor.
  • What is the main difference between the two?
    • Parallel starts with the same note; relative shares the same notes.

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