A Flat Minor Triad: A Music Theory Guide 🎶🎸🎹

By Jade Bultitude
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In this article you’ll learn how to construct the A flat minor triad as well as how to play it on piano and guitar.

We’ve also included sections on inversions for those that want a deeper understanding. Lastly, listen to some examples of popular songs that featured this triad.

Root , 3rd and 5th

The A flat minor triad is formed of the 1st, flat 3rd and flat 5th of the A flat major scale.

  • Ab – root note
  • Cb – minor 3rd above the root
  • Eb – perfect 5th above the root

Here is the triad written on the stave in the treble and bass clef.

Ab minor triad treble clef
Ab minor triad bass clef

Before you read on make sure that you have a basic understanding of intervals. Intervals are vital for understanding how triads are built. Check out our guide to major, minor and perfect intervals for more on this.

A flat Minor Triad on Piano

Below you can see how to play this triad on the keyboard or piano. This pattern of notes could also be played starting on any A flat note.

However, the order of the notes must be the same:

  • A flat – lowest note
  • C flat – middle note
  • E flat – highest note

This is called ‘root position’.

Ab minor triad root position piano diagram

Ab Min Triad on Guitar

There are two simple positions that you can use to play a A flat minor chord on guitar. Both positions can also be slide up or down the neck to play different minor triads.

A flat min triad root position guitar chart

A flat Minor Triad 1st Inversion

A 1st inversion is where we take a triad but we start on the second note, which in this case is C flat. We still keep the Eb above, but then the Ab (or root) become the highest note.

This way of rearranging a triad gives us a different sound as the relative pitches of the three notes has changed.

  • C flat – lowest note
  • E flat – middle note
  • A flat – highest note
A flat min triad 1st inversion

1st inversion on Piano

On the piano we can play the 1st inversion of a Ab Minor triad by starting on an C flat. They play the Eb above and the Ab above this.

A flat min triad 1st inversion piano diagram

1st Inversion on Guitar

Below are the most common shapes for playing a A flat minor chord in the 1st inversion. Remember that we can only use certain shapes are the pitches of the three notes are important.

A flat minor chord 1st inversion guitar chart

2nd Inversion

A 2nd inversion is where we take a triad but we start on the third note, which in this case is E flat. We still keep the A flat above this as we did from the 1st inversion. Then the C flat becomes the highest note in the chord.

  • Eb – perfect 5th (lowest note)
  • Ab – root note (middle note)
  • Cb – minor 3rd (highest note)

We could construct a 2nd inversion starting on any E flat note in any octave. The only thing that must stay the same is that the we use the A flat above and the Cb above that.

A flat min triad 2nd inversion

2nd inversion on Piano

On the piano we can play the 2nd inversion of a A flat Minor chord by starting on a Eb. They play the Ab above and the Cb above this.

A flat minor chord 2nd inversion piano diagram

2nd Inversion on Guitar

Below are the most common shapes for playing a Ab min triad in the 2nd inversion. Remember that we can only use certain shapes are the pitches of the three notes are important.

A flat minor chord 2nd inversion guitar chart

Triads from the A flat Minor Scale

By looking at the A flat Minor scale we can actually make triads built on each note and only using notes from A flat minor. Below you can see a list of each triad we will create be starting on different notes of the scale.

  • Ab Minor
  • Bb Dim
  • Cb Major
  • Db Minor
  • Eb Minor
  • Fb major
  • Gb Major
a flat minor chords

Famous Songs in A flat Minor

Due to its very awkward key signature (7 flats), pieces are rarely written in the key of A flat Minor. Composers often use G sharp minor (5 sharps), which is enharmonically equivalent to Ab Minor.

However, this didn’t stop some composers from using this usual key.

The Firebird- Igor Stravinsky

In the opening of Igor Stravinsky’s The Firebird (a ballet and orchestra work) we can see that the key signature of A flat minor is used.

Concerto for Two Pianos and Orchestra – Max Bruch

Max Bruch’s Concerto for Two Pianos and Orchestra, Op. 88a also uses this usual key. Bruch wrote the piece after hearing Rose and Ottilie Sutro play his Fantasy in D minor Op. 11 (for two pianos). Rather than starting from scratch he rewrote parts he had been composing for his Suite no. 3 for Organ and Orchestra.

Impromptu Op. 90 No. 4 in A-flat Major – Schubert

Schubert’s Impromptu in Ab major actually starts in A flat minor if you look carefully at the accidentals!

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AUTHOR
Jade is a flute player and music educator with a passion for educating the next generation of musicians. She is a Masters Graduate from Trinity Laban Conservatoire of Music and Dance. Jade has been helping people learn music theory for more than 10 years from pre school children all the way to degree level studies.