Nathaniel School of Music

Make a Full Chord Progression From Just One Chord on Piano (Major and Minor)

You can turn a single static chord into a full progression on piano by holding one inversion in the right hand (such as G C E for C major or C Eb G for C minor) and moving the left-hand bass through notes of the scale, which changes the mood and function of the chord without changing the right hand.

Video lesson by Jason Zac · Beginner · 23 min

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Key points

In this lesson Jason Zac shows how one chord held in the right hand can carry a whole section of a song. The creative work happens in the left hand: changing the bass note under the same chord changes its emotion and direction. It suits beginners who want to enjoy harmony without shifting shapes, and intermediate players who learned chords by the book and want fresh voicings.

Step 1: Choose an inversion of C major

C major is C E G. It has three piano-friendly shapes:

Jason uses G C E around middle C, a register that leaves room for the voice, especially for male singers. Pick whichever inversion feels comfortable and keep it for the whole piece.

Step 2: Hear what the bass does

With C in the bass the chord sounds stable and at home. With E in the bass (C/E) it feels restless and seems to want to move to F. With G in the bass (C/G) it leans towards G. A triad over a different bass note is called a slash chord, and the bass note largely defines the vibe of what you play.

Step 3: Walk the bass through the C major scale

Hold the right-hand chord and play each note of the C major scale in the bass: C, D, E, F, G, A and B. Almost every one sounds usable; only B sounds a little odd, so leave it out for now. Moving the bass within the scale like this is called diatonic movement.

Step 4: Play it in a simple ballad style

  1. Play the right-hand chord four times per bar, one hit per beat.
  2. Play one bass note per bar in the left hand, ideally as an octave.
  3. Change the bass, for example F, A, D, E, and it starts to sound like a chord progression.
  4. For extra movement, add a soft off-beat eighth note with the left-hand thumb, on the 'and' after the bass hit.

Guitarists often do something similar, holding a chord shape and changing only the lower strings.

Step 5: A song arrangement around C major

Change the bass every half bar (two counts each):

For colour, add D to the right-hand chord, which works well over the final G bass. Remove the E as well and G C D over G becomes a Gsus4 that wants to resolve to G major. You can also replace the G in the right hand with A (A C E), which sounds lovely over F, D or G. Try humming a melody on top to shape it into a song.

Step 6: The static minor chord

C minor is C Eb G, with inversions Eb G C and G C Eb. The bass now comes from a minor scale. C natural minor is C D Eb F G Ab Bb, with a flat third, flat sixth and flat seventh.

The hybrid minor scale

Jason treats minor as a hybrid: the third is always flat, while the sixth and seventh can change freely.

Avoid the exotic tension notes for now: the flat second (Db) and the flat fifth or sharp fourth (the tritone).

The minor arrangement

Use a classic descending bassline cliche under the held C minor chord: C, Bb, Ab, stay on Ab; C, Bb, Ab; then C, Bb, A (the Dorian natural sixth), Ab; then climb G, Ab, Bb and loop. Use the same ballad pattern with the eighth-note ghost. You can add D (the ninth) or Bb to the chord.

How to practise

Explore the bass freely and let the right hand simply hold its shape. Then try rhythmic variations: grooving the same chord and bass gives a bluesy or rock feel. One chord with a moving bass can become a verse, a bridge or even a chorus.

Questions about this lesson

How can one chord sound like a whole progression on piano?

Keep the same chord in the right hand and move the bass note in the left hand. Each new bass note creates a slash chord with a different emotion and pull, so the music feels like it is changing chords.

Which bass notes work under a C major chord?

Notes from the C major scale work well: C, D, E, F, G and A all sound usable under C major. B sounds a little strange, so it is best left out at first.

What is a hybrid minor scale?

It is a flexible way of thinking about minor where the third is always flat but the sixth and seventh can be flat or natural. This lets you move between natural minor, Dorian, harmonic minor and melodic minor sounds.

Which notes should I avoid over a static minor chord?

Avoid the flat second and the flat fifth (sharp fourth, the tritone) for now. They are strong tension notes that make a very specific, exotic statement.

Practise it

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