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Bass reading help

#2
Mattt1 said:
I need help, please look at link of the pic.

http://s21.postimg.org/rjj7iu893/Chart.png


Can you tell me in the pic what Chords- G7,C7,D7 belong too? It's a 12-bar blues progression in the key of G. In many styles of music, the 7th chord is only found on the V chord (in this case, D7), but in blues, it is common to use 7th chords throughout the progression. Blues music has its own conventions, often bearing little relation to classical music theory. These blues conventions also carry over to other styles, such as jazz and rock.

i know they are all 7th chords triads (with an added 6th). But i dont know if they are Major, Minor, Half diministhed..etc They are all "dominant" 7th chords, often just referred to as a 7th chord, as they are in this chart. They consist of a major triad plus a flatted 7th. In this case (which is a common bass line) the 6th is being used as a "passing tone" between the 5th and 7th.

also in D7 the 3rd is a sharp? why? what mode? The D7, like the other 7th chords, consists of a major tirad plus a flatted 7th. If you find the major third of the D7 chord, you will find that it is an F#, not an F natural. So that's the only reason. The mode being used is the corresponding Mixolydian mode for each chord (G mixolydian on G7, C mixolydian on C7, D mixolydian on D7)
Click to expand...

Hope this helps.
 
#3
I am not quite sure what you mean what chords they belong to, they are chords. In diatonic harmony the V chord is a dominant 7th (R, maj 3rd, Perfect 5th, flat 7) and the mode is mixolydian. The F# in the key of D is the major third. Also, the home key in the example is G major. The major chord is often changed to a dominant chord, its called V of V but at this point the theory explanation would only drive you nuts. If you are serious about this stuff get Mark Levine's book "The Jazz Theory Book".
 
#4
Mattt1 said:
I need help, please look at link of the pic.

http://s21.postimg.org/rjj7iu893/Chart.png


Can you tell me in the pic what Chords- G7,C7,D7 belong too?
Click to expand...
They belong to the key of G. Why? Chords in the key of G are; G, Am, Bm, C, D, Em F#dim. Notice the G, C and D are all major chords. Here is a little something that will help with all that. http://www.guitar-chords.org.uk/chords-key-c.html Now to your other questions.
i know they are all 7th chords triads (with an added 6th). But i don't know if they are Major, Minor, Half diminished..etc.

also in D7 the 3rd is a sharp? why? what mode?
Click to expand...
Yes they are all dominant sevens because the b7 - not the 6th has been added. Why did they do that? Blues will do this all the time, other than that, no real reason I know of besides it being part of a lesson perhaps introducing you to four note chords. The following may help;
Basic Chords
• Major Triad = R-3-5
• Minor Triad = R-b3-5
• Diminished Chord = R-b3-b5
7th Chords
• Maj7 = R-3-5-7
• Minor 7 = R-b3-5-b7
• Dominant 7 = R-3-5-b7
• ½ diminished = R-b3-b5-b7
• Full diminished = R-b3-b5-bb7
Click to expand...
Now to D7's 3rd being a sharp. Yep it is for this reason;
D scale is D, E, F#, G, A, B, C#, D.
If we stack the D scale in 3rds - every other note, we get the chord spelling for the key of D.
D F# A for D In making the D7 chord R-3-5-b7 the 3rd of the stack is the F# note.
E G ..B for Em
F# A C# for F#m

How did the Em and F#m get there?

Well, the E scale has a G# in it and your stack has a natural E so you flatted the 3rd note of the E scale for your stack AND every time you do that you get a minor chord. Notice the D's 3rd is a natural F# so it is a major chord.

Remember you had to learn 100 math facts by the 5th grade -- so you could do middle school math. Same here you need to get some of the theory facts under your belt and it will be smooth sailing after that. Here is a good place to start that journey. Link Removed

Have fun.

P.S. you mentioned mode. Do your self a favor; run from modes until you know your theory a little better. Why? Modes will take you down some very confusing alleys and IMO waste your time right now. A year from now, sure take on modes and have fun with them, but like I said above, you gotta have those 100 music facts first.

P.S.S. Here is something I lived with for quite some time. Help yourself.

Here is the starting place - The Major Scale
Scales with sharps
C D E F G A B ...........................0 sharps
G A B C D E F# .........................1 sharp
D E F# G A B C# .......................2 sharps
A B C# D E F# G# .....................3 sharps
E F# G# A B C# D# ...................4 sharps
B C# D# E F# G# A# .................5 sharps
F# G# A# B C# D# E# ...............6 sharps
C# D# E# F# G# A# B# .............7 sharps
Memory peg - See God Destroy All Earth By F#iry C#aos
Order of sharps - Fat Cats Go Down Alleys Eating Birds
Quick, what are the notes in the E major scale? Easy way; E, F, G, A, B, C, D now go back and put in the sharps or flats. E has four sharps. Which ones? Use Fat Cats --- Fat cats go down – so the E scale will have a F#, a C#, a G# and a D#. Therefore the E scale is E, F#, G#, A, B, C#, D#.

Scales with flat notes
C D E F G A B ...........................0 flats
F G A Bb C D E ..........................1 flat
Bb C D Eb F G A ........................2 flats
Eb F G Ab Bb C D .......................3 flats
Ab Bb C Db Eb F G .....................4 flats
Db Eb F Gb Ab Bb C ....................5 flats
Gb Ab Bb Cb Db Eb F ..................6 flats
Cb Db Eb Fb Gb Ab Bb .................7 flats
Memory peg - See Farmer Brown Eating Apple Dumplings Greasly Cooked
Order of flats use same Farmer Brown, etc.
Click to expand...
 

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