A Major Scale: Notes, Chords, and How to Play It

A major is a brilliant, sparkling key with three sharps. It is one of the most popular keys for rock and pop guitar, where the open A string provides a powerful bass foundation. On piano, A major sits comfortably under the hands with its three black keys creating natural guide points for the fingers.

Notes of the A Major Scale

The A major scale contains seven notes:

A – B – C♯ – D – E – F♯ – G♯

Starting from A, the scale follows the major scale interval pattern — W – W – H – W – W – W – H — and arrives back at A one octave higher with three sharps: C♯, F♯, and G♯.

The half steps fall between C♯–D (degrees 3–4) and G♯–A (degrees 7–8). This placement is what gives every major scale its characteristic bright, resolved sound. For a deeper look at the major scale formula, see Understanding the Major Scale.

A Major on Piano

A major uses three black keys: C♯, F♯, and G♯. This gives the hand a comfortable topography — the raised black keys act as landmarks for finger placement, and many pianists find A major easier to play than C major for this reason.

Right hand fingering (ascending): 1 – 2 – 3 – 1 – 2 – 3 – 4 – 5 (thumb crosses under after C♯, then fingers walk up to A)

Left hand fingering (ascending): 5 – 4 – 3 – 2 – 1 – 3 – 2 – 1 (after the thumb plays E, the third finger crosses over to F♯)

The key technique is the thumb crossover: the thumb tucks under the hand smoothly to maintain an even, legato sound. Practise this motion slowly until the transition is seamless before building speed.

A Major on Guitar

On guitar, A major is a powerful key. The open A string is the root, the open E strings provide the fifth, and the open D string is the fourth — giving many chord shapes a full, ringing quality. The open position scale covers the first few frets with a comfortable pattern.

Open position (low to high):

This pattern covers one octave from A on the 5th string to A on the 3rd string. From here you can extend up the neck using the CAGED system to play A major in every position.

Use the guitar fretboard view in the Interactive Chord Finder to see all positions at once.

Diatonic Chords in A Major

Every chord built from the A major scale follows a predictable pattern of qualities. Stacking thirds on each scale degree produces seven triads:

The pattern major – minor – minor – major – major – minor – diminished holds true in every major key. Once you know this pattern in A, you know the chord family for all twelve major keys.

For a thorough explanation of how these chords are constructed, see Diatonic Chords: A Beginner’s Guide.

Seventh Chords

Adding a fourth note to each triad creates seventh chords, which add colour and harmonic richness. These are essential in jazz, soul, and contemporary pop:

Notice that only the V chord produces a dominant 7th — the chord type with the strongest pull back to the tonic. This V7→I resolution (E7→A) is the engine of tonal harmony. For more on seventh chords, see Seventh Chords: The Complete Guide.

Common Chord Progressions in A Major

These progressions are among the most widely used in popular music. Knowing them in A major gives you a template you can transpose to any key.

For a deeper dive into how progressions work, see Chord Progressions Every Musician Should Know.

Songs in the Key of A Major

A major is a favourite key for rock, pop, and country music. A few well-known examples:

• “I Wanna Hold Your Hand” — The Beatles
• “Livin’ on a Prayer” — Bon Jovi
• “You Shook Me All Night Long” — AC/DC
• “Wonderwall” — Oasis (capo on 2nd fret)
• “Take On Me” — a-ha
• “Don’t Stop Believin’” — Journey
• “Space Oddity” — David Bowie

Listening to these songs with the scale in mind helps you hear how melodies move through the seven notes and how chords resolve to the tonic.

Relative Minor: F♯ Minor

Every major scale has a relative minor — a minor scale that contains exactly the same notes but starts on a different degree. For A major, the relative minor is F♯ natural minor.

Both scales use the same seven notes. The difference is which note functions as the tonal centre: when you resolve to A the music sounds bright and major; when you resolve to F♯ it sounds darker and minor. Composers frequently shift between a major key and its relative minor within a single piece to create contrast — the bridge of a pop song often moves to the relative minor before returning to the major chorus.

To find the relative minor of any major scale, count down three half steps (a minor third) from the root, or simply start on the 6th degree. To go the other direction, the relative major of F♯ minor is A major — up three half steps from F♯.

Parallel Minor: A Minor

The parallel minor is the minor scale that shares the same root note. For A major, the parallel minor is A natural minor.

Unlike the relative minor (which shares the same notes), the parallel minor shares only the root. Three notes change: C♯ becomes C, F♯ becomes F, and G♯ becomes G. These flattened 3rd, 6th, and 7th degrees are what shift the mood from major to minor while keeping A as home.

Parallel minor borrowing is one of the most powerful tools in songwriting. When a song in A major suddenly uses a chord like F or G major — chords that belong to A minor, not A major — the effect is immediately dramatic. This technique, called modal interchange or borrowed chords, appears everywhere from classic rock to film scores. For more on this topic, see Secondary Dominants and Borrowed Chords.

Related Scales and Modes

A major is the parent scale for a family of related scales that share its notes:

All seven modes use the same seven notes — the difference is which note you treat as home. The A major pentatonic (A – B – C♯ – E – F♯) is a five-note subset that removes the half steps for an even smoother sound.

Practice Tips

Play the scale daily. Even experienced musicians warm up with major scales. Play it ascending and descending, hands separately, then hands together on piano. On guitar, play it in every position you know.

Say the note names aloud. Naming each note as you play builds the mental connection between sound, letter name, and finger position. This pays dividends when you start sight-reading or transposing.

Practise with a metronome. Start at a comfortable tempo (60–80 BPM, one note per beat) and only increase speed when every note is clean and even. Uneven scales at a fast tempo teach bad habits.

Play in thirds. Instead of A–B–C♯–D, play A–C♯, B–D, C♯–E, D–F♯ and so on. This breaks the linear pattern and starts to sound musical, while also preparing you for chord construction.

Explore the chords. After playing the scale, arpeggiate each diatonic triad. Then try simple progressions like I–IV–V–I (A–D–E–A). Connecting scales to chords is where theory becomes practical music-making.

Try It Yourself

Open the Interactive Chord Finder, select A as the root and Major (Ionian) as the scale. You will see every note highlighted on the piano keyboard or guitar fretboard, the step pattern visualised as intervals, and all diatonic chords laid out in a table — ready to play and explore.

For the complete list of major scales in every key, see Scales for Piano and Guitar: The Complete Reference Guide.