![]() ![]() (In other words, there definitely a chords that exists in principle but not 'named' just because noone uses them.) But a list of 35 is very short of complete. Of course, most of them are not usually used in music, as smacking every key down on a piano generally sound quite unmusical, and so I doubt if anyone has bothered to give a name to the, say, CM7 #9 b9 11 #11 b13 #13 chord. So, mathematically, in the usually used 12-tone pitch system of Western/pop/jazz music, there are 2^11 - 1 = 2047 different possible combinations of pitch classes modulo transposition ( 2^11 is the number of ways additional tones can be added once you fix a root note subtracting one because a note by itself does not a chord make). Well, a musical chord is by definition a collection of two or more notes sounding simultaneously. Most chord programs that I've seen would not have picked the D♭ Maj11♯5 name above - does that mean they are too simplified, or (going back to my question) does that chord name not really exist? Perhaps these chords have little purpose in a practical music sense, but I'm more coming from a theory perspective.Īnd if you're interested, the real purpose of my question, is that for a programming exercise I wanted to write a program that could work out the name of any chord, based on what notes you gave it. What I want to know is - are chords such as these real chords that exist in music theory: 1, ♭3, ♭5, ♭7, ♭9, 11 m11♭5♭9 I think it must be, because I haven't broken any of the "rules" of naming chords that I'm aware.Īnyway, this chord is just an example. Now of course, my chord book has no such chord as a Maj11♯5, nor does any website I've ever seen - but does that mean it is not a real chord? Which I decided must be a D♭ Maj11♯5 chord - based on the 1, ♯5, 7, 11 intervals. Surely that list of chords (for guitar anyway) is finite.įor instance, I was mucking around on guitar and came up with this (awful sounding) chord: I'm talking about the number of possible chord formulas according to how the rules of chord naming works. I'm not talking about different fingerings or positions of the chords. When I look on the web or in other tools, all the same types of chords come up.īut I don't think this is the "full" set of possible chords. My chord book covers 35 different chord types. ![]()
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