🎸 Chord Generator
Select a root note and chord quality to see the notes and piano layout.
About this tool
The Chord Generator is a quick reference for building any chord by root and quality. Select a note, pick a chord type — major, minor, suspended, seventh, extended — and see exactly which notes it contains along with the interval each one plays from the root. The piano diagram shows where those notes land on a keyboard so you can play or voice them immediately.
FAQ
What do the interval names mean?+
Each interval counts the distance, in semitones, from the root. A major 3rd is four semitones up, a perfect 5th is seven, and so on — these are the harmonic building blocks of every chord.
Why are there both sharps and flats?+
The same pitch can be spelled two ways depending on the key. Toggle "Show flats" when you are writing in a flat key (like Bâ™ or Eâ™) for more idiomatic notation.
What is the difference between m7, maj7, and 7?+
They share the same triad but add a different 7th: m7 adds a minor 7th over a minor triad, maj7 adds a major 7th over a major triad, and a plain 7 is a dominant — major triad with a minor 7th on top.
Can I use this for transposition?+
Yes — build the chord in its original key, note the intervals, then rebuild on the new root and you will have the equivalent chord in the target key.