When the chord you want to resolve is a minor chord, the ascending diminished is undoubtedly the most widely used and always works! But some authors also use the “dim” notation: Cdim. That means that C°7, Eb°7, Gb°7 and A°7 are made of the same tones! After all, it still has two tritones! The descending diminished is often replaced by SubV7 (we will talk about this chord in the next module) when the intention is to explore this chromatic effect for major chords. Both are based on a diminished triad. Choose your preferred setting: The difference between a diminished chord and a half diminished chord lies in the seventh. minor-minor seventh chord. The uppercase letters you will see in chord symbols are C, D, E, F, G, A, and B. Notice now that, as there are 12 notes on the tempered scale and a diminished chord corresponds to another 4 chords identical to it, we can conclude that there are only 3 different diminished chords. Musicians use various kinds of chord names and symbols in different contexts to represent musical chords. The minor 7th is again decreased by a semitone and hence is equivalent to a sixth (6) - … Both are based on a diminished triad.This triad consists of two stacked minor thirds and thus represents a minor triad with a diminished fifth b5* (remember: the minor triad consists of a stack of minor third + major third, which together gives a perfect fifth). A diminished major seventh chord is a diminished triad with a major seventh, often indicated with ° M . In this case, the diminished chord is usually played a semitone above or below the chord you want to resolve, being called, respectively, ascending diminished and descending diminished. Well, just as a reminder, the concept of tritones refers to a need for resolution. It's similar with Cb or Fb. The symbol "o" before the 7 or the abbreviation "dim" indicates a diminished-diminished seventh chord. The diminished seventh chord is a seventh chord composed of a root note, together with a minor third, a diminished fifth, and a diminished seventh above the root: (1, ♭3, ♭5, 7). The minor 7th of C is a Bb. See an example of replacing the G7 chord with a diminished chord below: When the diminished chord has the same bass (lowest note) as the chord it resolves, it is called the auxiliary diminished. Consequently, C/E indicates a C major triad with an E in the bass (first inversion). So, we can use it to replace dominant chords (like the V7, for example). While the diminished triad is a chord in itself, you can think of it as the common building block used to create its big brothers: diminished 7th and half-diminished chords. But some authors also use the “dim” notation: Cdim. Both of these chords start with a diminished triad as the first three notes, but have a different top note. We will now analyze these two approaches (ascending and descending diminished) and discover which ones are most used when the chord you want to resolve is major or minor. ©2014-2020 All Rights Reserved - Simplifying Theory. Fully Diminished Seventh Co7, Cdim7. An easy way to think of the diminished chord is to remember the interval of “three semitones”, since all the degrees of the diminished chord have three semitones of distance between them. The chord symbol for C fully diminished is Co. Let’s put these chords in a chart and include some other variations. The most used symbol for the diminished chord is a little circle above the letter of the chord: C°. Great, but can we use the ascending diminished and the descending diminished to resolve in any major or minor chord? Thus the diminished 7th is strictly speaking a Bbb. Note: in practice the symbol Cois often realized with a fully-diminished seventh chord, though strictly speaking it indicates the diminished triad with no 7th. To reduce data transfer, sounds are not downloaded by default. Here is an exercise for you: check the G#° notes and compare them with the G7 notes. The remaining diminished chords are a consequence of these 3 chords: Okay, so we already know how the diminished chord is formed, it’s time to analyze it from the point of view of harmonic functions and general applications. For a diminished-minor seventh chord a slash is often drawn through the "o" or the symbol "b5" will follow the 7. It will sound beautiful most of the time. Practice this concept and include diminished chords in your music arrangements! If the G7 chord resolved in a chord other than C, we would have a deceptive resolution. o7= the notes C-E b-G-B bb(The Bmight be spelled as A in staff notation.) Having two tritones is no small feat, is it?! For example, the diminished seventh chord built on C, commonly written as C , has pitches C–E♭–G♭–B: In daily life you may sometimes just say "B" or "E". The same thing happens with the descending diminished. In most genres of popular music, including jazz, pop, and rock, a chord name and its corresponding symbol typically indicate one or more of the following: The tritones of the descending diminished chord do not resolve in the same way as the V7 chord, therefore, the descending diminished ends up having only the chromatic function, and this makes its use not always pleasant. When heard alone, diminished chords can be perceived as eerie, goofy, or even annoying. The symbols for a diminished 7th chord are, dim7 or º7; The featured practice song for this session using dim7 chords is 'Love is a Losing Game' written and performed by Amy Winehouse with some excellent backing. In this case, the F#7 chord is the dominant that resolved in B major, while the G7 chord acted as a chromatic approach chord. For example, the tritone of the G7 chord is between the F and B notes. The minor third and the diminished seventh. *) You might consider writing mb5 as chord symbol instead of dim or °.However, this is uncommon. Move the same chord fingering three frets again, and you have the next inversion. You will see that the G7 tritone is present in the G#° chord, which makes this substitution possible. The root is always the note that’s the basis for the chord. Chord Symbol #1 (Long) Chord Symbol #2 Chord Symbol #3; C Major 7th: Cmaj7: C 7-C Dominant 7th-C7-C Minor 7th: Cmin7: C_7-C Half Diminished-Cø7: C_7♭5 : C Fully Diminished-Co-Chart Notes. Practically the diminished chord comes hardly ever as a pure triad. The only reason people use that terminology because it's used sometimes in chord symbols which some people also call the fully diminished chords m6b5 which again isn't proper. *) You might consider writing mb5 as chord symbol instead of dim or °. Major Seventh Cmaj7, C∆7, Cma7, CM7. Half diminished chords . To build a diminished triad, first find the root note of the chord. It is up to each musician to define his tastes. It can be seen as a stack of minor thirds. The half-diminished 7th chord takes a diminished triad and adds an interval of minor 7th on top. Check the C diminished chord and its respective notes below: Now this chord shifted 3 semitones upwards (pay attention to the notes): This is very convenient, because if we want to play, for example, A°, we can play C° (since it is the same chord!).