Piano Chords for Beginners: A Visual Guide
By Keyboard Play
A chord is simply three or more notes played together. The moment you press a few keys at once, you have made a chord — and chords are the building blocks of almost every song you have ever heard. This guide walks through the essentials from scratch, and lets you hear every chord right away on the online piano, right here in your browser. No install, no sign-up: just press a key.
What exactly is a piano chord?
Most chords you will meet early on are triads — three-note chords built by stacking notes a third apart. You start on a root note, skip a note, take the next, skip again, and take the next. On the white keys of C, that gives you C, E and G: three notes that belong together, and the foundation of countless songs.
The shape of those three notes — how far apart they sit — is what gives a chord its character. Move the middle note up or down by a single semitone and the whole feeling flips from bright to wistful. That sensitivity is why chords are so expressive, and why learning a handful of them unlocks a huge amount of music. On this site every chord has its own page: browse the full set of piano chords and tap Play notes to hear any one instantly.
The major chord: your starting point
A major chord is the bright, settled sound at the heart of most pop, folk and classical music. It is built from three notes: a root, a major third four semitones above the root, and a perfect fifth seven semitones above the root. For C major that means C – E – G. Try the C major chord and press Play notes to hear it ring out — it should sound like home, the place a song in a major key wants to rest.
Because this keyboard maps the middle of the piano onto the keys in front of you, that C major triad sits under familiar fingers. On the default Wide1 layout the notes fall at C4 = M, E4 = . (or W) and G4 = R. Hold all three down at once and you have played a C major chord. Hold the Space bar while you do it and the notes sustain and blend together, just as a pianist's sustain pedal lets a chord breathe.
Major vs minor: one note changes everything
Lower the middle note of a major chord by one semitone and you get a minor chord — softer, more inward, the sound most people reach for to express sadness or longing. Everything else stays the same: the root, the perfect fifth, the three-note shape. Only that single middle note moves, from a major third to a minor third three semitones above the root. For C minor the notes become C – E♭ – G.
Hear the difference for yourself. Play the C major chord, let it settle, then switch straight to C minor. On the Wide1 layout that second chord is C4 = M, E♭4 (D♯4) = L and G4 = R — the same M and R as before, with L in the middle instead of the period key. That one substitution is one of the most powerful moves in all of music, and it is well worth training your ear to recognise.
Building chords from a scale
Every scale gives you a family of chords built only from its notes, and these diatonic chords are the chords that naturally sound good together in that key. Start with the C major scale — C D E F G A B, all white keys — and stack thirds from each degree. You get seven chords: C major, D minor, E minor, F major, G major, A minor and a B diminished chord to finish.
Notice the pattern: in a major key, the chords built on the 1st, 4th and 5th notes are major, while the ones on the 2nd, 3rd and 6th are minor. That is not a coincidence — it falls straight out of the scale's whole- and half-step pattern. This is why so many songs in C major lean on C, F and G, with A minor and D minor for colour. Explore any scale page to see its diatonic chords listed and ready to play.
Beyond major and minor
Major and minor triads cover a huge amount of ground, but they are only the beginning. Once you are comfortable with them, a few more chord types open up richer territory:
- Diminished and augmented chords — tense, unsettled sounds built from evenly stacked minor or major thirds. They rarely sit still; they want to resolve somewhere.
- Suspended chords (sus2, sus4) — chords that swap the middle note for the 2nd or 4th, creating an open, holding-breath quality that loves to resolve back to a major chord.
- Seventh chords (7, maj7, m7) — add a fourth note on top for extra colour, from the bluesy pull of a dominant 7th to the lush warmth of a major 7th.
Every one of these has its own page with the exact notes, keyboard positions and a Play notes button. Once major and minor feel familiar, pick one new type — say, a C major 7th — and notice how a single added note transforms the mood.
Chord progressions: putting chords to work
Chords rarely sound their best in isolation. String several together and you get a progression — the harmonic engine of a song. One of the most famous is I – V – vi – IV: in the key of C that is C major, G major, A minor, F major. Play those four in a loop, holding the Space bar so each chord flows into the next, and you will hear the backbone of countless hit songs.
The beauty of learning a few chords in one key is that the same shapes, moved to new roots, work in every other key. Transpose the whole idea up a step and you have the same progression in D. Because every chord here links to its relatives and the scales it belongs to, you can wander from one key to the next and always land somewhere that sounds right.
A simple practice routine
You do not need hours a day to make progress with chords — you need a little, often. A workable routine takes only a few minutes:
- Pick one major chord and its minor neighbour (C major and C minor) and play each until the shape feels automatic under your fingers.
- Name each note out loud as you play it — C, E, G — so the theory and the sound stay linked.
- Switch to a new key using the Octave or Transpose controls and play the same chord somewhere else on the keyboard.
- Loop a simple I – V – vi – IV progression with the Metronome on, slowly, until the changes feel smooth.
Do that for a week and you will have a small but solid vocabulary of chords you can actually use. Record the result with the online piano recorder, download it as an MP3, and listen back: hearing yourself is one of the fastest ways to improve.
Keep reading
- Understanding Major vs Minor Chords — go deeper on the single note that changes a chord's mood.
- The 12 Major Scales and Why They Matter — the scales your chords are built from.
- Easy Piano Songs You Can Play Right Now — put your first chords to work in real pieces.
- Browse every piano chord or explore the scales behind them.