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Holy Flipping Intervals Batman!

Adam Furay (1713)

Bass Theory Forum
3/17/2010 12:43 PM
This post was inspired by a thread in the instruction forum that morphed in to something better suited for my favorite cob-webbed corner of AB, the..../insert drum roll....THEORY FORUM!! mwa hahahahahaha!

Ever wondered what happens to an interval when you invert it? No, it doesn't show up a week later reeking of gin wearing your mom's high heels and singing Verdi aria's in German. But this does happen:

Step 1: Subtract the interval from 9
Step 2: Flip the tonality (Major to Minor, Diminished to Augmented
Step 3: Miller time!

Thus a Major 3rd (B above a G) would become a Minor 6th (B below G)
...OR a diminished 5th (F above a B), would become an augmented 4th (F below B)
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Re: Holy Flipping Intervals Batman!

3/17/2010 12:50 PM

Adam Furay (1713) wrote:

Perfect intervals retain the same quality.
i.e. a Perfect 5th (D above G) would become a Perfect 4th (D below G)



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Re: Holy Flipping Intervals Batman!

3/17/2010 1:11 PM

Ivan Thuringer (40918) wrote:

Yeah, but throw in a joint and all hell breaks
loose!

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Re: Holy Flipping Intervals Batman!

3/17/2010 2:18 PM

WAYNE ELLIOTT (21617) wrote:


So a Minor 7 would become a Major 2 ?

G up to F > > > > > > > > G down to F



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Re: Holy Flipping Intervals Batman!

3/17/2010 6:10 PM

Adam Furay (1713) wrote:

aye



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Re: Holy Flipping Intervals Batman!

4/2/2010 8:56 PM

Dan Gable (699) wrote:

Or better yet a minor 7 becomes a Major 6th cool on the bass fret board 4 frets down from a Maj 6 is a min 7th or relative minor



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Re: Holy Flipping Intervals Batman!

4/3/2010 10:43 AM

WAYNE ELLIOTT (21617) wrote:

The topic here was / is INTERVAL INVERSIONS.

When necessary, I refer to the chart below.

@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@@@#@##@#@###@

Semitones Interval
-----------------------
0 ... Unison
1 ... flat 2nd
2 ... 2nd
3 ... minor 3rd
4 ... major 3rd
5 ... perfect 4th
6 ... flat 5th (diminished 5th or augmented 4th)
7 ... perfect 5th
8 ... minor 6th (or sharp 5th/augmented 5th)
9 ... major 6th
10 .. minor 7th (flat 7th)
11 .. major 7th
12 .. octave
13 .. flat 9th
14 .. 9th
15 .. sharp 9th/minor 10th (just minor 3rd one octave higher)
16 .. major 10th (just major 3rd one octave higher)
17 .. 11th
18 .. augmented 11th
19 .. perfect 12th (octave above perfect 5th)
20 .. flat 13th
21 .. 13th

@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@@@#@##@#@###@


1 ... flat 2nd
11 .. major 7th

2 ... 2nd
10 .. minor 7th (flat 7th)

3 ... minor 3rd
9 ... major 6th

4 ... major 3rd
8 ... minor 6th (or sharp 5th/augmented 5th)

5 ... perfect 4th
7 ... perfect 5th

6 ... flat 5th (diminished 5th or augmented 4th)
6 ... augm 4th (augmented 4th or diminished 5th)
... and the cheese stands alone with the tritone!

.....
Or better yet a minor 7 becomes a Major 6th ... What ?

Eminor7 = 1,b3,5,b7 = E,G,B,D
G Maj 6 = 1,3,5,6 = G,B,D,E

I think this is what you meant ... a chord inversion :)
.....

4 frets down from a Maj 6 is a min 7th or relative minor ... What ?


... again, using my 'homeschooled' chart above,
this is what I came up with.

9 ... major 6th
(9 minus 4)
5 ... perfect 4th

I don't see how this links to a [ a min 7th ]

... or relative minor ... What ?


G Maj 6 = 1,3,5,6 = G,B,D,E
G Maj 6
4 FRETS DOWN


4 frets down I have Eb,G,Bb,C



How is that a 'RELATIVE minor' ?


G Major scale





E(natural minor)




I go 3 frets down and play:
E,F#,G,A,B,C,D = E Aeolian

Help me understand ... and welcome back.



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Re: Holy Flipping Intervals Batman!

4/3/2010 8:06 PM

Dan Gable (699) wrote:

Hi wayne, How you doing? Good to see your still posting. Count down 4 frets from the G on the G maj chord and you get a E of the Emin chord.
All the notes are the same between both minor and major.
GMaj6


Emin7







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Re: Holy Flipping Intervals Batman!

4/4/2010 11:59 AM

WAYNE ELLIOTT (21617) wrote:

1. The topic here was / is INTERVAL INVERSIONS,
NOT CHORD INVERSIONS :)

2. 4 frets down from a "G" is an "Eb",
NOT AN "E" :)

3. An Emin7 = E,G,B,D ..., HAS NO "A" :)
EMin7






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Re: Holy Flipping Intervals Batman!

4/5/2010 4:20 PM

Dan Gable (699) wrote:

LOL my bad Wayne that was a typo Emin7= egbd



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Re: Holy Flipping Intervals Batman!

4/3/2010 8:12 PM

Dan Gable (699) wrote:

when your going 4 frets down you are forming another Major chord and you should be forming a minor chord thats where you are getting confused.



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Re: Holy Flipping Intervals Batman!

4/4/2010 8:48 AM

David Muise (15739) wrote:

I think where he's getting confused is because you remarked on a discussion about changing by 2 frets not 4.



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Re: Holy Flipping Intervals Batman!

4/4/2010 12:07 PM

WAYNE ELLIOTT (21617) wrote:

Or better yet a minor 7 becomes a Major 6th ... What ?

Eminor7 = 1,b3,5,b7 = E,G,B,D
G Maj 6 = 1,3,5,6 = G,B,D,E

I think this is neither BETTER, NOR BETTER YET :)


4 frets down from a Maj 6 ... ????

(G Maj 6) Nowhere does he specify
that the "FRETS DOWN" movement
applies only to the ROOT note.

So when I did what was said,
(Moving each note down 4 frets)
4 frets down I have Eb,G,Bb,C
(Eb Maj 6) or (Cmin7 [C,Eb,G,Bb] )


G MAJ 6





If I were to demonstrate the relation,
I would first show the student THIS:
E Min 7









... Then I would show THIS:
EMin7



Explaining that the new ROOT note
(E) has moved down 3 FRETS, and to
that we've added:
a. A minor 3rd (G)
b. A 5th (B)
c. A minor 7th (D)

Thanks David

Wayne



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Re: Holy Flipping Intervals Batman!

4/4/2010 12:18 PM

David Muise (15739) wrote:

Dunno what I did, but your welcome ;)

Thank you Wayne (et al) for trying to explain Theory to me (us?) at a level we can access.

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