Relative vs Parallel Minor on Piano: Two Ways to Unlock New Moods
A relative minor keeps the same notes as its major key but moves the home note to the sixth degree (C major to A minor), while a parallel minor keeps the same home note and flattens the third, sixth and seventh (C major to C minor).
Key points
- A relative minor uses the same notes as its major key but starts on the sixth degree: C major and A minor share C D E F G A B.
- A parallel minor keeps the same root and flattens the third, sixth and seventh: C major becomes C minor (C D Eb F G Ab Bb).
- Relative keys share a key signature; the relative major is a minor third above the minor root.
- Borrowing chords from the parallel minor, such as Eb or Fm in C major, creates a dramatic change of mood while keeping the same home note.
- The relative approach suits verse-and-chorus contrast; the parallel approach suits a bigger scene change.
This lesson from Jason Zac at Nathaniel School of Music explains two terms that are easy to confuse: the relative minor and the parallel minor. It is aimed at pianists, songwriters and composers who want to move away from one key during a song without confusing the listener. Everything is explained in C major, so you can follow along on the white keys.
Why the home note matters
Your ear does not judge a single note on its own. It hears each note in relation to a reference point, the root or home note. In C major, every note is measured against C: G is a perfect fifth above C, A a major sixth, B a major seventh. Some intervals sound consonant, like the fifth, and some dissonant, like the seventh.
In chord-based music you set up that home note with chords. The diatonic chords of C major are C, Dm, Em, F, G, Am and Bdim. Major chords tend to sound happy, minor chords serious or moody, and the diminished chord tense and uncertain.
The relative minor: same notes, new leader
A relative scale keeps exactly the same pitches as the parent scale but changes the root. Because the root changes, every interval changes, and so does the mood.
- Build the relative minor on the sixth degree of the major scale. In C major that is A, so the relative minor is A minor: A B C D E F G.
- Going the other way, the relative major is a minor third above the minor root: from A up to C.
- Relative keys share a key signature. No sharps or flats means C major or A natural minor. D major and B minor also share a key signature.
The relative minor is also called the natural minor or the Aeolian mode. In fact, any note of the parent scale can become a new root, which is how modes are formed.
Hearing the difference
Play a C major triad (C E G), then an A minor triad (A C E). Then try melodies that stress different notes. In major, F falling to E (4 to 3) and B rising to C (the leading tone, 7 to 1) are typical moves. Over A minor, leaning on F (now the sixth degree) sounds much more minor, and B sounds pensive and restful, whereas over C the same B wants to move back to C.
The parallel minor: same home note, new notes
A parallel scale keeps the root and changes the notes. The parallel minor of C major is C minor: C D Eb F G Ab Bb. Compared with major, the natural minor flattens the third, sixth and seventh. Other parallel options follow their own formulas: Dorian flattens the third and seventh, and melodic minor flattens just the third. You can also shift to C Lydian for a dreamy sound or C Mixolydian for a different colour, all over the same C.
The chords of C minor are Cm, Ddim, Eb, Fm, Gm, Ab and Bb. Compare them with C major and you will see big contrasts: Cm instead of C, Ddim instead of Dm, and Eb, a note C major does not contain at all.
Using both in a song
- Relative approach: keep the same chords but stress the minor ones (Am, Dm, Em) in a verse, then lean on the major chords in the chorus. It feels like the same room seen from two states of mind, a question followed by an answer.
- Parallel approach: start a section with C, F and G, then borrow chords from C minor for a contrasting passage, and return to C major. This feels like a scene change or plot twist.
Note that C minor has its own relative major, Eb major, sharing the flats Bb, Eb and Ab. Linking keys this way builds a web of related scales to move through.
How to practise
- Write out each major key with its relative minor and its parallel minor.
- Play the triads of both minors and compare them with the major chords.
- Improvise melodies over A minor and C minor, listening for how each landing note feels.
- Practise your scales and notation regularly so these choices become instant.
Questions about this lesson
What is the relative minor of C major?
A minor. It is built on the sixth degree of C major and uses exactly the same notes, C D E F G A B, with A as the new home note.
What is the parallel minor of C major?
C minor. It keeps C as the root but flattens the third, sixth and seventh, giving C D Eb F G Ab Bb.
How do I find the relative major of a minor key?
Go up a minor third from the minor root. From A minor you go up to C, so C major is the relative major, and the two share the same key signature.
When should I use a parallel minor instead of a relative minor?
Use the relative minor when you want a gentle shift in mood with the same chords, such as a pensive verse and an uplifting chorus. Use the parallel minor, or borrow its chords, when you want a strong contrast while keeping the same home note.
Practise it
- Circle of FifthsExplore the Circle of Fifths through keys, scales, chords and intervals.
- Two NotesA guided field guide to intervals: consonance, inversions, scales, modes and the Circle of Fifths.
- All free music apps40 practice tools for harmony, rhythm, ear training and more.
Related lessons
- Truly Understand Modes From 2 Easy PerspectivesYou can understand modes in two ways: treat each mode as its own scale built from one root by changing intervals, or keep one key signature, such as F major with Bb, and start on each scale degree to get Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian and Locrian.
- 15 of the Most Popular Chord Progressions on Piano (Major, Minor and Modal)Popular piano chord progressions in the key of F include I–vi–IV–V (F Dm Bb C), I–V–vi–IV and its rotations, ii–V–I, the minor i–bVII–v–bVI, the Andalusian i–bVII–bVI–V, the Dorian i–bIII–bVII–IV, the Mixolydian bVII–IV–I, the 12-bar blues, the Canon progression and the line cliché.
- Drone and Pedal Tone Chords on Piano: 5 Songwriting MovesA drone or pedal tone is a bass note that stays fixed while the chords above it change, and Jason Zac shows five ways to use one on piano: drone cadences, modal drones, line-cliché drones, melodic chord drones and modal interchange over a single bass note.
- How to Compose Original Chord Progressions on Piano (Songwriting Theory)To compose original chord progressions, start with the diatonic triads of a major scale, then widen your vocabulary step by step with add chords and sevenths, slash chords, chords borrowed from parallel scales, and secondary dominants that point towards the next chord.