Author Topic: Minor 7th chords  (Read 1039 times)

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Offline batwoman

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Minor 7th chords
« on: April 16, 2018, 04:51:04 am »
I can't get my head around the bit in red, page 10.

Now we get to play with a little logic. Minor 7th .... hmm ... minor means to flatten the 3rd and 7 means to add the flat 7 (don't forget that the Maj 7 adds the regular 7th scale degree, a 7 on it's own adds the b7 ...

What am I missing?

I understand that Minor 7 = R b3 5 b7

Offline DarrellW

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Re: Minor 7th chords
« Reply #1 on: April 16, 2018, 06:53:28 am »
My interpretation would be that for example A major 7 is R 3 5 7 then A7 is R 1 3 5 b7 A7 being the Dominant 7.
Here is my ‘go to’ for chords I’m not sure about
https://www.8notes.com/guitar_chord_chart/amaj7.asp
My singing sucks so I’m learning Guitar and Ukulele, it’s fun 🌟

Offline batwoman

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Re: Minor 7th chords
« Reply #2 on: April 16, 2018, 06:59:41 am »
My interpretation would be that for example A major 7 is R 3 5 7 then A7 is R 1 3 5 b7 A7 being the Dominant 7.
Here is my ‘go to’ for chords I’m not sure about
https://www.8notes.com/guitar_chord_chart/amaj7.asp

Thanks Darrell. I understand the formulae for all four in Justins book, I still don't understand what the phrase in red means.

Thanks for trying to help me :)

Offline DarrellW

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Re: Minor 7th chords
« Reply #3 on: April 16, 2018, 07:47:56 am »
Right, I see - what I think he means is that with the 7 on its own ‘dominant’ is understood so the b7 is used👍
My singing sucks so I’m learning Guitar and Ukulele, it’s fun 🌟

Offline close2u

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Re: Minor 7th chords
« Reply #4 on: April 16, 2018, 08:05:15 am »
...a '7' on its own ..... examples A7, B7, D7, G7 .... adds the flat 7 note

Not Major 7
Not minor 7
Just 7

Also called Dominant 7


Major 7 = 1, 3, 5, 7
minor 7 = 1, 3, 5, b7 (typo now corrected - sorry) minor 7 = 1, b3, 5, b7
7 = 1, 3, 5, b7
« Last Edit: April 16, 2018, 10:25:38 am by close2u »

Online DavidP

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Re: Minor 7th chords
« Reply #5 on: April 16, 2018, 09:39:53 am »
...a '7' on its own ..... examples A7, B7, D7, G7 .... adds the flat 7 note

Not Major 7
Not minor 7
Just 7

Also called Dominant 7


Major 7 = 1, 3, 5, 7
minor 7 = 1, 3, 5, b7
7 = 1, 3, 5, b7
So in similar vein to the names above: 1, b3, 5, b7 = ???  and 1, b3, 5, 7 = ???

I know changing 3 to flat 3 makes the chord a minor chord ... probably getting out of my theoretical depth now on chord theory ... still working in PMT rather than the Chord Construction Guide :)

So apologies if a meaningless question

Offline close2u

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Re: Minor 7th chords
« Reply #6 on: April 16, 2018, 10:27:46 am »
So in similar vein to the names above: 1, b3, 5, b7 = ???  and 1, b3, 5, 7 = ???


First is minor 7 ( I made a typo above - now corrected)

Second is min/maj7 ... yeah, something for the jazzers maybe  ;)

Offline batwoman

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Re: Minor 7th chords
« Reply #7 on: April 16, 2018, 11:03:56 pm »
Thanks Close and Darrell. I'd like to see that paragraph re-written. The information in the line inside the brackets is a red herring. 'A 7 on its own' means nothing to me. Your examples Close, A7, B7 etc and the explanation make  bit more sense. It's confusing and distracting. Perhaps it could be included in the section Comparing the Four 7th Chord Shapes on page 11. 

I'd like the format for Dominant 7th, Minor 7th and Minor 7b5  changed to match what has been set up for E Shape 7th Chords. Here's my suggestion.

Use the format and structure established on page 8 for all four of the sevenths chords introduced
1. Name the chord type in bold
2. Introduce it and explain the format in a straightforward way. Keep the fancy stuff for later.
3. Put the format in a line of its own.
4. I would also like to see the way in which the chord is customarily written in a line of its own.
5. Then the blurb, detail etc.

Then, to reinforce and summarise this info, on page 11, add the way in which the chord is written to the summary already there towards the bottom of the page in the section Comparing the Four 7th Chord Shapes.
« Last Edit: April 16, 2018, 11:48:28 pm by batwoman »

Online DavidP

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Re: Minor 7th chords
« Reply #8 on: April 16, 2018, 11:07:41 pm »
First is minor 7 ( I made a typo above - now corrected)

Second is min/maj7 ... yeah, something for the jazzers maybe  ;)
Thanks Richard.

 

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