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9 add 9?

Discussion in 'Impro & Theory' started by jeremyjuicewah, Dec 10, 2011.

  1. jeremyjuicewah

    jeremyjuicewah Well-Known Member

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    Well I just thought it would get your interest. Dont get connected in the new flat till Monday so cant pick up or post very often at the mo. Been delving into theory since I damaged my lip and had a good lesson yesterday but didnt understand it all. Best sometimes to let something go in order that the lesson moves along but I am still stuck with this, using C for the example:
    C9 has a flattend 7th, as does C11, C13 etc. Why? What it there to tell me in C9 that the 7th is flattened? Or is it like Cminor, where I just know the 3rd is flat? And then, C add 9. I should know this but I get very confused. If add 9 is the D added to the C chord, why is C9 different to add 9?

    Would also like to apologise to someone on here who asked about what the chords above a melody were for in terms of improv some time ago. I gave the most ignorant and uninformed answer. I now know better and even realise to some extent what I do not know. I hope the poor so and so took more notice of the more informed answers over mine.

    But goodness, it is VERY interesting.
    Best wishe
    Mike
     
  2. aldevis

    aldevis Surrealist Contributor. Cafe Moderator

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    C9 has a flattened 7th because it comes from a dominant chord when a tonic chord didn't use to have a 9th.
    Cmaj9 has a major 7th
    Cadd9 has NO 7th

    But these are just conventions... C7#9 should actually be C7b10, but common practice wins.

    I hope this helps
     
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  3. Pete Thomas

    Pete Thomas Chief of Stuff Cafe Moderator

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    aldevis is spot on. It is just the way it is, not really logical, just convention.

    If you think about it, it is just an extension of C7, there is nothing in the nomenclature of C7 to tell us the 7 is flattened, we rely on the modifier maj in a major 7 to differentiate.

    This does confuse people who start of with classical theory, who might think of C E G B as chord I7

    It'a all confusing until you get used the the conventions, e.g. common sense might make us think Cmin7 is a C chord (C E G) with a minor 7, but we know it's not, it's a Cminor chord with a (minor) 7.[/QUOTE]
     
    Last edited: Oct 6, 2015
  4. Young Col

    Young Col Well-Known Member

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    Yes that confusion isn't helped by the more traditional learning routes like ABRSM main grades where they are taught as dominant 7ths. Thus a C7 is learnt as a dominant 7th on F major. Same thing of course, but no mention of the (more common in jazz/pop) C7 notation.

    However, the traditional way does give the answer. If you work it out as a dominant 7 in F major then it will have a flat B. If you take it as a tonic chord in C major, then it obviously it won't, hence CMaj7.
     
  5. tenorviol

    tenorviol Full of frets in North Shropshire

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    As someone who has 'gone the classical route' and therefore I'm used to notation like "I7" or "V7" it took me a while to realise that C7 meant "V7" in the terminology I was used to.... which is significant with regard to the 7th.
     
  6. jeremyjuicewah

    jeremyjuicewah Well-Known Member

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    Thank you all. I will slug away at this until the lip heals then I am going to explore improv in practice. I never ever realised how neatly all this stuff goes together.
    Cheers
    Mike
     
  7. jeremyjuicewah

    jeremyjuicewah Well-Known Member

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    Thanks again all. I have got through that now and I understand.
    Mike
     
  8. rhysonsax

    rhysonsax Well-Known Member

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    I was going to start a new thread, but I guess my question is related to this existing thread.

    I have seen the chord symbols C7+9 and C7+ and am confused as to what they mean and so what notes are in each chord.

    Researching on line gives me conflicting information:
    • some sites say C7+9 is a C7 with a #9 on top: C E G Bb D# (is this the Hendrix chord ?)
    • some sites say C7+9 is C9: C E G Bb D
    • some sites seem to say C7+9 is Cadd9: C E G D (but why is the 7 in the symbol) ?
    • some sites seem to say that C7+ is C augmented7: C E G# Bb

    What is correct (and why can't there be better standardisation of chord symbols) ?

    Rhys
     
  9. aldevis

    aldevis Surrealist Contributor. Cafe Moderator

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    C7+9 is usually a misspelling of C7#9
    C7#9 is usually a misspelling of C7b10, but let's not get there.

    C7+ is usually Caug7 (#5)

    But there might be disagreements.
     
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  10. Colin the Bear

    Colin the Bear Well-Known Member

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    Everything written isn't written with knowledge. Misunderstandings are passed on. Guitar conventions and shorthand sometimes bear little actual relevance to musical theory and harmony. Where a symbol for a guitarist means a shape on the fretboard, the same symbol to a woodwind player is a list of the contents of the chord


    "Add" and + mean the same thing in arithmetic. But in harmony short hand + is augmented. And here the confusion starts.

    C add 9 ( CEGD) isn't C+9 (Caug9 CEGD#) and C9+ is different again. CEG# D.

    C7+9 is a confusing list of symbols. It would seem to be a C7aug5th add 9 or is it a C7add9 written by a mathematician.

    Even with reliable trusted sources, typos occur. Adding to the confusion. I'm only just getting to grips with this.
     
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  11. Pete Thomas

    Pete Thomas Chief of Stuff Cafe Moderator

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    The + should just mean augmented 5th. But sadly it became used (Berkley?) to mean a sharpend 9. hence the confusion.

    Aldevis and Colin are right, it is a big confusion and mess.

    Some people will say the + has to be before the 7 if it refers to the 5, but who has time to think about that?

    So I would recommend you think that the + only refers to the 5 (i.e. augmented 5) and if anyone uses it to mean #9, then they are wrong.
     
    Last edited: Oct 6, 2015
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  12. jbtsax

    jbtsax Old and opinionated

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    I can see where C#9 could be confusing. It could mean a C#7 with an added 9th or it could mean a C7 with a #9. It seems that a logical workaround would be to write C+9.
     
  13. Pete Thomas

    Pete Thomas Chief of Stuff Cafe Moderator

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    C+9 is C E G# Bb D
     
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  14. Targa

    Targa Well-Known Member

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    If 6 was 9 would it be a Jimi riddle?
     
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  15. jbtsax

    jbtsax Old and opinionated

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    I stand corrected oh great Chief of Stuff. :) I've gone back to my Aebersold and now I'm even more confused. What's the old saying, "Things aren't always as they appear to be"?
     
  16. aldevis

    aldevis Surrealist Contributor. Cafe Moderator

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    Aebersold's scale syllabus is sometimes misleading.
    Take it with a bit of critic sense.
     
  17. jbtsax

    jbtsax Old and opinionated

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    So how would one write the chord symbol for a C# dominant 7 chord with a raised 9th? Would it be C##9? Or perhaps C#7#9? By jove, I think I've got it. When the chord name (tonic) includes a sharp or a flat it is best to add a 7 when adding a #9 or b9, even though that is not necessary when the chord name does not include a b or # such as C#9 or Cb9. Oh dear I've lost it again. Maybe you always want a 7 when the 9th is raised or lowered like C7#9 or C7b9, but when the 9 is just 9 then you can leave off the 7 which is implied.
     
  18. aldevis

    aldevis Surrealist Contributor. Cafe Moderator

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    You got it.
    C#9 can only mean C# with dominant 7 and major 9.

    In the rare case you want no 7th but a #9 (that I'd call b10)
    C# add#9

    By convention....
    If X is the root...

    X7
    X9
    X7b9
    X7#9

    But if no 7th...
    X add9
    X add #9
    X add b9
     
  19. aldevis

    aldevis Surrealist Contributor. Cafe Moderator

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    Also, guitar players usually play it wrong anyway, while pianists are better
     
  20. aldevis

    aldevis Surrealist Contributor. Cafe Moderator

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    Who said "accordionists"?!
     

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