Cadd9 vs C9 Chords - What's the Difference?

I've been a patron for 2 months roughly, I'm trying to practice at least half an hour every day plus more than 1 hour over the weekend

Stefano.B65

Rob-I'm a new "patron" and really find your lessons helpful and inspirational

Hey John, absolutely. I always watch theory videos a few times through before I'm able to apply the information. Let me know if you have any questions. Have fun!

Hey that’s an excellent question and a really important one. Basically there are two types of 7th chords: dominant 7 and major 7. The first includes the flat 7th, and the latter includes the actual 7th note of the scale.

Great lesson, thank you Rob. I'm confused about how the flat 7 is used to make the C chord into a dominant chord. The flat 7, in this case Bb, is not one of the notes in the C major scale. Am I missing something about music theory?

Gonna take a couple times through to assimilate. Thanks.

Thanks for the lesson Rob.

Oh yeah!💡🤔

Ah, that’s the golden question Richard. The reason is because those intervals were already featured in the basic major triad - 1.3.5. Since they won’t change the name of the chord, we don’t bother to differentiate them from the scale intervals in the first octave. Make sense?

Thanks Rob, I like the theory lessons. But, I have a question: why I should the open high E string not considered to be a 10 instead of another 3? Or the G in the third fret not be a 12?

Rob, can you make a lesson on Wonderful Tonight by Eric Clapton. Thanks.

Hey glad to be of help Prithvi! Let me know if you have any questions. Be well. -Rob

My pleasure Dawn. Now that you understand the function of the term "add" you can apply it to chords like Cadd11 or Cadd13. Anytime you see that "add" in the chord name its simply saying "add this scale degree to the basic major or minor chord."

Super Lesson Rob. Back to basics, awesome and thanks.

Another aha lesson for me, Rob. Each one unlocks another mystery. Now I've got some add9 and 9 chord figuring to do. Thanks a bunch.