Great tutorials on these minor blues lessons. I can’t wait for Mr. PC. I mentioned a while back to Hayden to incorporate this kind of material within his courses and my dream and wish is forth coming . You reference lesson 6 in the lesson 5 video on Walking Bass but I think Lesson 6 will be Mr. PC. Thanks a lot.
(i never know what are the good areas to put my questions but i think this one is fine)
Im drilling through the second lesson of the minor blues and i have some questions:
can we play all inversions ( rootless and not rootless)
also can we play an approach diminshed chord to the C-7 like we did with the Edim approaching the F-7 chord
Yes you could certainly use a diminished chord to approach the C-7.
Regarding the Edim7 chord approaching F-7:
The Edim7 chord can also be seen as a rootless C7b9 chord
If you take the notes of Edim7, we have E-G-Bb-Db, and if we add a C in the bass, we then have C7b9.
This is true for all diminished chords, and often they are functioning as dominant chords in disguise.
So the Edim7 to F-7 could be seen as a C7b9 to F-7 which is simply a V7 - i-7 resolution.
Coming back to your question:
For the final chord in the tune, Matt shows a number of different tensions that can be played over the G7 chord taking us back to C-7 at the top of the form.
He does actually use a diminished chord at 7:07 in the tutorial:
He calls it a rootless G7b9, which as we just identified above, is also a diminished chord.
It looks like a Ddim7 chord. However, it’s also important to understand that diminished chords are symmetrical in the sense that when we invert the voicing, we have the same interval combination.
So Ddim7 is also Fdim7, Abdim7, and Bdim7.
Furthermore, each one of those diminished chords can function as G7b9, Bb7b9, Db7b9, and E7b9.
That’s quite a lot to take in, but check out this lesson for more information:
Diminished theory is a fascinating subject, our course on diminished chords contains lots of great application examples.
We also have a thread on Diminished Scale Theory that you might find interesting: