The chord chart below lists all the common triads and four note extended chords belonging to the key of C major. D minor. C major scale notes: C D E F G A B C. Major key chord sequence: Maj min min Maj Maj min dim. Roman numerals indicate each chord's position relative to the scale. Now you’ve mastered the tonic chord of C Major, let’s look at the other chords that are used a lot in this key. We call these the primary triads, or primary chords.Each key has three primary triads— these are the chords built on the first, fourth and fifth degrees of the scale.So let’s look back at the scale degrees for C Major:The first note of the scale is C, the fourth note is F and the fifth note is G. We will use these notes to build our chords. Guitar chords in the key of C include C major, F major, G major, A minor, D minor, and E minor This gives us the notes C, E and G, which is the C major triad, therefore the first chord in the key of C is C major. Chords in the key of C major. I. Note: D E F# G A B C# D Triad: 1 3 5 So our 3 rd note for would be an F#, but we