How to play chords with your left hand

What a triad is

Most chords you’ll meet early are triads: three notes, each a third above the last. Take any note as the root, skip a letter for the third, skip another for the fifth. From C that gives C–E–G, the C major chord.

When the root is at the bottom, the chord is in root position, and on the staff it looks like a neat snowman: three notes on three lines in a row, or three spaces in a row.

C, F and G major in root position in the bass clef. C–E–G and F–A–C sit on spaces, G–B–D on lines. Read the bottom note, and the shape tells you the rest.

These three chords, C, F and G, are the home chord and its two nearest neighbours in C major, and between them they harmonise a great many simple tunes. The chord pages for C major, F major and G major show each one on the keyboard, and the chord-reading quiz helps you recognise them on the page quickly.

Fingering left-hand chords

For a root-position triad in the left hand, use 5-3-1: little finger on the root, middle finger on the third, thumb on the fifth. Keep the fingers curved and the hand relaxed, and let the three notes go down together, with the weight of the arm rather than a push from the fingers.

Practise placing the shape silently first: hover over C–E–G, put the fingers down without playing, lift, move to F–A–C, put them down again. When the shape lands without looking, add sound.

Moving between chords: inversions

Playing every chord in root position means jumping the whole hand from C to F to G. It works, but it’s clumsy and it sounds jumpy. Instead, play the same notes in a different order, so the hand moves as little as possible. A chord with its third at the bottom is in first inversion; with its fifth at the bottom, second inversion. The notes, and the chord’s name, stay the same.

C, F and G chords that move as little as possible: C–E–G, then C–F–A (C stays), then B–D–G, then home to C–E–G. No note moves further than a skip, and most move a step or stay put.

Here the F chord keeps C at the bottom and the G chord drops to B. Fingering: 5-3-1 for C–E–G, 5-2-1 for C–F–A, and 5-3-1 for B–D–G (some players prefer 5-4-1 there; use what feels steady). The hand stays in one place, the fingers do the moving, and the chords sound connected. This little progression is worth learning so well that you can play it with your eyes closed.

Left-hand patterns that make an accompaniment

Chords held for a whole bar can sound static. Accompaniment patterns take the same chord and spread it out in time. Here are four on one C chord.

One C chord, four patterns: block chords, broken (C E G E), Alberti (C G E G), and root and fifth. The notes are the same; only the order and timing change.

Block chords: all three notes together. The easiest, and good for slow songs and hymns.
Broken chords: the notes one at a time, up and back (C E G E). Flowing, and gentle under a melody.
Alberti bass: bottom, top, middle, top (C G E G), usually in eighth notes. A common accompaniment in Classical sonatas, Mozart’s among them. Keep the thumb light so the top note doesn’t stick out.
Root and fifth: just two notes, root and fifth together. Open and strong, and it suits low notes and pop songs.

The waltz pattern

In 3/4, the classic accompaniment is bass, chord, chord: a low bass note on beat 1 and the rest of the chord on beats 2 and 3.

A waltz left hand: the bass note on 1, then two lighter chords. C under E–G, G under D–F, back to C. Play the bass a little heavier than the chords.

The hand jumps from the bass note up to the chord every bar, which is a good exercise in moving without looking. Aim for the chord with your fingers ready in shape before they land.

Playing from chord symbols on a lead sheet

Pop songbooks and lead sheets often give only the melody and chord names above it: C, F, G7, Am. That’s an invitation to make your own left hand.

Find each chord’s notes. Root, third, fifth, from the letter. A small “m” means minor: the third is a half step lower.
Choose a voicing that moves as little as possible from the last chord, as above.
Pick one pattern and keep it. Block chords for a ballad, broken chords for something flowing, waltz for 3/4. Changing pattern every bar is harder to play and less pleasant to hear.
Change chord exactly where the symbol is, usually on beat 1 or beat 3.

Keep low chords open

Three notes close together sound clear in the middle of the keyboard. Move the same shape down into the bass, below roughly the C an octave under middle C, and the thirds start to blur into a growl. That’s the nature of low notes, not your playing: close intervals down there clash and lose their clarity.

So low down, leave the thirds out. Play the root alone, root and fifth, or the root in octaves, and let the right hand or a higher left-hand chord carry the third. A common shape is a low root on beat 1 followed by a close chord higher up, which is exactly what the waltz pattern does.

How to practise left-hand chords

Changes only. Block chords, one per bar, at a slow beat. Get every change on time before anything else.
The pattern. The same changes with your chosen pattern, left hand alone, until it runs by itself.
With the melody. Add the right hand slowly. If it falls apart, go back to block chords under the melody for a while. Playing with both hands has more on this step.

Reading chords in the bass clef is a skill of its own; reading bass clef faster covers it. And when you want the chords to ring and join up, the sustain pedal guide shows how to change the pedal with each chord.

For reading practice, the free sight-reading levels bring these in one at a time: left-hand triads, Alberti bass and waltz accompaniment, each with new pieces every time.