These chord shapes work equally for mandolin, banjolin, mandolin banjo, octave mandola, gdae tuned bouzouki and gdae tuned tenor banjo.
Click on a chord letter above to show you the table of notes and some easy chord diagrams for the family of chords (major, minor, seventh and modal).
You will see a table of the notes for the scale starting on that note (the Tonic). After each table are the chord shapes for the basic chords - 5th, Major, Seventh and Minor. The 1st, 3rd and 5th notes will be highlighted. These three notes are the most important for chord formation. See How to to see how other chords are formed or Intervals to see a gentle explanation of chord formation.
The table for C chords shows all the notes in the scale of C, starting with the root (1) and going up to octave (8)
The Major Chord is the 1st, 3rd and 5th note (C, E and G) which are highlighted.