Easy Piano Chords: The 7 Basic Triads w Roman Numerals in C Major

These are the 7 basic chords we can create using only the notes in the C major scale. Since the chords are comprised of only 3 notes, they are called triads. Since they are made using only notes in the C Major scale, they are said to be "Diatonic" to the key of C major. I = C major = C - E - G ii = D minor = D - F - A iii = E minor = E - G - B IV = F major = F - A - C V = G major = G - B - D vi = A minor = A - C - E vii° = B diminished = B - D - F