About chords Home Page › Forums › Rock Class 101 Ukulele Lessons › About chords Tagged: Chords This topic has 1 reply, 2 voices, and was last updated 7 years, 3 months ago by Andrew. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts March 14, 2018 at 11:56 pm #16132 linxueqiongParticipant Hi guys, I don’t understand the difference between triad chords and 7th chords. For example, why C chord is a 3 note chord and G7 is a 4 note chord? how to tell the difference? March 15, 2018 at 4:19 pm #16135 AndrewKeymaster Hi! We cover that in our course: An Introduction to Music Theory & Jamming. Specifically in this lesson from the course: Chord Theory: Triads and Seventh Chords. Although, I’d recommend to start at the beginning as theory concepts build on top of each other. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In