The theory behind building and naming chords.

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Tonnetz algorithms

I'm looking for applied algorithms for Riemannian tonnetz. I was thinking first of the "big bang" approach with some of the 3D projections of tonnetz, but those are overshoot.
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Is there any theory to decide a set of plausible chords per measure where a whole melody of a song is given?

I know my question looks similar to many other questions. But, please be patient with me. I'm writing this question because I can't find any appropriate answer although I have searched for it for a ...
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2answers
480 views

Best name for chord consisting of G Eb F Bb C?

I have a chord progression in the key of C, which walks up from the IV chord up to a particular variation of the V7 chord, which I'm trying to name in a helpful way for a lead sheet. Here are my ...
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650 views

What to call the chord G B F# A C# F#

I wrote a piece containing the following six string guitar chord (fingering shown; first finger barre; standard tuning): %3/2.2/1.4/3.2/1.2/1.2/1 What is the name of this chord?
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Chord Leading Question

I've been writing for quite some time, but only recently have I begun to earnestly study up on music theory to a greater level than the basics. Given that, I'm a bit confused on one thing: Do ...
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Minor scale chord substitution

Considering the C major scale we can build the following table of chord function families: To a certain extent, inside each family chords can be interchanged to give a different flavour to a music ...
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322 views

What note type in the 7th of a chord? - Music Theory

If this diagram is accurate, would the 7th of a Bmin7 be formed from a minor 7th interval or a major 7th interval, e. g. A-natural or A-sharp? I'm assuming A-natural. If this line of thinking is ...
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471 views

List of possible trichord/triad names

I'm looking for the names that trichords can have. I know chord naming and recognition is a complex dynamic, and context is important; but for now I'm only looking for names that are assigned to ...
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373 views

Why do we call the Hendrix chord 7#9 instead of 7b10?

The Hendrix chord is usually mentioned when a harmony contains both the major and the minor third, together with the minor seventh. Were it a major seventh, I'd say we have an augmented 9th and thus ...
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206 views

When is a note b5 and when #11?

(on an Jazzology exercise) I have to identify this chord: What I thought it was was: G7 b5 b9 b13. But when I looked at the solution, it was G7 b9 #11 b13. I said that the chord had b5 because of ...
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How long should each chord in a chord progression be played?

For example I am making a 16 bar chord progression for a verse of a song and choose to use the I , IV , V chords of a major scale.. How can I put these chords in a nice rythm so they sound good and ...
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269 views

Confused about diminished chords for guitar

I came across several guitar chords which seem to be 'diminished' chords: X° X°7 Xø Xø7 I read some articles that might provide useful informating, including the Dutch Wiki article Chord (music), ...
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What is the clearest way to signify the harmonic function of a polychord?

Chords can be analyzed with roman numerals to indicate function: C, Am, Dm, G I, vi, ii, V (or I, VI-, II-, V in jazz theory) And inversions may be analyzed by adding an arabic numeral indicating ...
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244 views

What do the numerator and denominator of a chord name in roman numerals mean?

I'm reading a paper on music theory and I keep coming across names of chords expressed as a fraction - I/I, I/V, ii/I, etc. Based on the use of these names in the paper, I'm reading this as: I/I: A ...
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4answers
133 views

Notation and construction of 13th chords

Firstly, I would like to ask whether 13th chords by default have a minor, major or diatonic 13th or is it contextual to the 3rd used. E.g. Am13 in the Aeolian mode: Is the 13th F or F# (F being ...
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Naming two-note chords

Is there a convention about how to name two-note chords? I noticed that software like Apple Logic Pro names two-note chords like this: Db C = Db no 3 ma7 C Eb = Cm So I'm assuming the dynamic for ...
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How to create an interval from a note which doesn't start a major scale

When constructing an interval, e.g. a major third from A I work like this: Count three notes including the starting one, so A, B, C Now check on the circle of fifths whether A major scale has an ...
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Is there a special name for “I - V - i” or “i - V - I” Modulation?

Recently, while listening to contemporary and pop music, I discovered that many song uses an I - V - i or i - V - I modulation. For example, C major to G major to C minor. I want to know whether there ...
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How to determine which inversion a chord is?

Say I'm given the notes like this. How do I determine whether it's already in root, 1st, 3rd, or 7th inversion?
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What does a number inside a parentheses in a chord name mean? Example: B(7)#9b9

What does a number inside a parentheses in a chord name mean? Here are some examples I have found: B(7)#9b9 no 5, Ab(7) #9#11 no R, A(7)b9sus no b7 . For context, I found them on this James Hober ...
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What are the chords in the harmonic minor and the melodic minor scales?

I want to know what the chords are in the harmonic and the melodic minor scales. Like if we take C major scale, then the chords are C Dm Em F G Am Bm(b5) C If we take C natural minor scale, then ...
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7/6 no 3 or 13 no 3, 9, 11; which chord name is more correct (if any)?

Which name is better, more correct? C13 is C E G Bb D F A. If we remove the third, ninth, and eleventh, we get C G A Bb. Would C13 no 3, 9, 11 be an correct name? I've found that same chord named ...
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What do you call a chord that is not complete?

What do you call a chord that is not complete or how can you tell what chord a group of notes are? Is it by looking at the root note? For example: C# E G# B F# => C# Maj 11 E F# G# ...
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Diminished chord with one raised note

I have no formal training in music theory, so my question might be phrased a bit clumsily. There is a kind of jazzy chord progression I enjoy very much, the one which, from the top of my head, I ...
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Knowing what chord to play next?

This is a question I've had for a long time but I've never really found the answer other than following some suggestions on chord sequences like 1,3,2,5 and 1,4,5, but I'm sure there must be another ...
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215 views

How to interpret non-diatonic note?

This might look like is just curiosity to know something about one particular song, but is not, I'm hoping it'll help me understand better when I'm doing song analysis. I keep struggling when ...
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1answer
131 views

Tritone substitution in a ii-V-I progression and chord names

I'm learning a bit about chord progressions right now and so I stumbled across tritone substitutions. I tried applying those to a ii-V-I progreesion in G-major, but I'm not sure if I did it right, to ...
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Essential strumming patterns/techniques? and the theory behind it? [duplicate]

I used to play silly led zeppelin and velvet underground covers. i knew all the vu strumming just because i knew the records by heart. i've started to get more into classic folk and country and nick ...
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272 views

How would you interpret this chord progression?

Ok, To be Specific I'm looking for Key Chord Types With Degree I've included both keyless and how I understand it. My Interpretation so far To me it's obvious that this Key is B, which would ...
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151 views

Chords Built On Different Scales

Can chords be built on different scales i.e. harmonic minor, melodic minor, and when they are, how is this known?
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proper uses of minor seventh chords

Having used dominant seventh chords extensively,I am now trying to incorporate minor seventh chords into my compositions... Based on my [rudimentary] knowledge, minor seventh chords are usually used ...
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Is this a Csus4 chord?

I have a book that labels C, F, Bb, and D as a Csus4 chord. I get the F is the 4th to C, but why the dominant 7th and the 9th? Are those vital to a Csus4 chord, do they add to it, or is the book just ...
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Why some musicians insist on naming notes using odd numbers?

I keep hearing that naming chord note a 4th or 6th is wrong. To me, it is just number for note from given ascending collection, but some musicians insist it should be counted using triads, and ...
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If you add an E to a Bm chord, what do you have?

For instance playing standard barre on the 2nd fret, but leaving the high E open. My brain is banking out figuring out what an E is in this context and how the resultant chord would be named.
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Do the 'natural' chords to use in a key change if you use a different mode?

This question gives a great, not-too-technical explanation of modes: What are modes and how are they useful? I wondered if playing in a different mode would mean the standard chords change move also? ...
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Minor scale with 7th chords, 7th not raised on 1 and 3

In my music theory class, the text book has in an example, all of the 7th chords in a G harmonic minor scale. Why, in the chords on 1 and 3, is the 7th is lowered? While the chords on the 5 and 7 are ...
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What is the most common way to notate dominant chords with a sharp fifth?

Is just adding #5 a common practice? As in: D Gb Bb C E G = D11#5 I've seen it also as D11+. Is there a more conventional way to notate this?
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Understanding music with multiple key changes within chord progressions

So this has been bothering me for some time now; I've been making beats for maybe 7-8 years now but my earlier work is heavily-sampled. I just started actually picking up piano, but on my own, ...
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210 views

Minor major seventh flat five chords: do they exist, and if so, how should they be used?

When randomly playing chords, my husband and I stumbled upon an interesting four-note combination of C, Eb, Gb and B natural, which sounded pretty nice to us despite the dissonance. This looks like a ...
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Pentatonic scale chords

The pentatonic scale often has chords that are 4 or 5 semitones apart (CEA, GCE, etc.). How do you describe these chords? Is the only way to describe them as major/minor chords but with a different ...
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How to use bIII in music composition?

From the Borrowed Chords theory, I should be able to use the flat-third major (bIII) in my composition and it should sound good. However, after many trial and errors, I am unable to discover any ...
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C major 6th chord and A minor 7th chord: same notes but different quality, why?

Simple question: many have noticed that the A minor 7th chord is the an inversion of the C major 6th chord. However, the more interesting this is why they have different quality (as minor and major) ...
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4answers
283 views

What is the best way to organize chords/keys in a database (details below)?

I am working on a project that involves putting together a database of chords/keys, and I'm wondering what you guys think is the best way to categorize each chord/key. For example, if I want users to ...
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Chord notation for stacked and inverted chords or intervals?

I understand how chord notation works for the most part, but I'm wondering how I would notate intervals, octaves, and specific chords. P1, m3, & P5 is Cmin. P1, P5 is C5 But, how do we notate P1 ...
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Building Lydian chords

I am learning about chords and their relationships to major scale modes in jazz. As I understand it, each mode allows a different chord to be built by choosing the 1st, 3rd, 5th, 7th of the scale. I ...
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How important are chord inversions as an intermediate guitar player and what are their applications?

I've been on a run to get a lot of theory down after realizing how amazing music theory is. As a guitar player going through a intermediate-advanced theory journey, I would like to know where ...
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Why is the tonic chord of a key formed with the 1,3 and 5 notes of the key but the major chords in that key are the I IV and V?

The tonic chord in a given key is formed by using the 1 and 3 and 5 notes of the scale in whatever key you are in. However, in chord theory, the Major chords that work in that key are the one, four ...
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971 views

Theory of Major and Minor Chord Sounds

Since a major triad is comprised of a minor-third stacked on top of a major-third, and a minor triad is comprised of a major-third stacked on top of a minor-third, they should, in "theory", have the ...
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Progressing from a C Minor 9th

If I am playing a C Minor 9th chord what are the next chords up that work with a C Minor 9th? Am I able to follow the C Minor scale and create a 9th from each note in the scale? A bit confused on ...
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Do different minor chords (vi, ii, etc) convey different nuances?

I came across some postings discussing whether different minor keys produce different moods, but i have not found one that compares different minor chords... As each minor chord has a different ...