Free tool
Piano chord finder
Choose a root note and a chord type and this tool draws the chord on a keyboard, plays it, and names every note in it. It covers fourteen chord types from plain major and minor through to sevenths and suspensions, computed from intervals rather than looked up, so every root works.
C majorC · E · G
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Questions
Common questions
What notes are in a C major chord?
C, E and G. A major chord takes the root, the note four semitones above it, and the note three semitones above that.
How do I find a chord I heard?
Use the chord identifier instead, which works the other way round: you play the notes and it names the chord.
Does this tool cost anything?
No. It is free and unlimited, and asks nothing of you.