Question about lesson 49 (building more complicated chords)

[Pablo De Miguel]

In these lesson PG teachs some chord shapes where you can find the root note of that chord and the same note one octave highter, so you can modifie that note to alter the chord and he stars moving these note to lower notes to make a Maj7 chord, b7Chord etc… But he never rise that octave a half step to put it between the octave and the sus2. Do you know why he never do that or if that hypothetical chord does have name?

 

[idssdi]

First off, the sus2 is not an interval it implies a chord where the third is replaced by a second. Just so you know.
To answer your question, no the b2 isn’t really used in chords so much. Usually 9 chords use the regular 9th and not the b9. In the general the 9th gets sharpened sometimes(giving a minor third) but not flattened. I could find one chord with the b9 and that is the 7b9 chord. A thing to note is that jaws is pretty much made of minor seconds(there is barely any sharks in there and the music makes that movie).
I would encourage you to expirement with it a little bit. Maybe you can find nice chords that sound good to you.

 

[Pablo De Miguel]

Thank you!! I will experiment whith these a bit