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Cedarstone Music
Chord Builder
Build any chord from any root — see the intervals, hear it, and find its function in every key.
This tool uses sound.
Make sure your device isn't on silent/mute and your volume is turned up.
Root Note
Chord Quality
C Major
Cmaj · C△
Play Chord
Notes & Intervals
Roman Numeral Function
Which major keys is this chord diatonic to?