In the same way that the entire chord itself has a chord quality, the intervals representing the individual notes within that chord each have their own quality. Then there is one note interval to describe the 2nd note, and another to describe the 3rd note of the chord, and finally another interval for the 4th chord note. The root note is always the 1st note (note interval 1 in the above diagram) of the major scale diagram above. It also shows how the 7th chord qualities are related to the triad chord qualities they are based on.Įach individual note in a 7th chord can be represented in music theory using a note interval, which is used to express the relationship between the first note of the chord (the root note), and the note in question. This step defines the note intervals for each chord quality, including the intervals for the C half-diminished 7th 7th chord. The steps below will detail the half-diminished 7th triad chord quality in the key of C. Without this 3rd note, suspended chords tend to have an open and ambiguous sound.
Musically, this is interesting, since it is usually the 3rd note of the scale that defines the overall character of the chord as being major (typically described as 'happy') or minor ('sad'). removed completely, and replaced by either the 2nd note of the major scale - a suspended 2nd, or more commonly by the 4th note of the major scale - a suspended 4th. Unlike all of the above qualities, Suspended triad chords do not use the 3rd note of the major scale (at all) to build the chord. Suspended 7th chords - using the 2nd or 4th scale notesĪ suspended chord is known in music theory as an altered chord because it takes one of the above chord qualities and modifies it in some way. In fact, these 7th chords are based on triad chords - the first 3 notes of any 7th chord are identical to a specific triad chord quality, with one extra note added to make it a 7th chord.
It is these variations of the 3rd, 5th and 7th notes that give each one a distinctive sound for any given key (eg. Triad chord qualities using the 1st, 3rd, 5th and 7th scale notesĪll of these 7th chord qualities are based on the 1st, 3rd, 5th and 7th notes of the major scale piano diagram above.ĭepending on the chord quality, the 3rd, 5th and 7th scale note names of the major scale above might need to be adjusted up or down by one or more half-notes / semitones / piano keys. 7th chord qualitiesħth chords exist in eight different chord qualities, which are diminished, half-diminished, minor, minor-major, dominant, major, augmented, and augmented-major.Įach chord quality name is the name of the entire chord as a whole, not its individual notes (which will be covered later). Whereas a triad chord contains 3 notes, a 7th chord contains 4 notes that are played together or overlapping. This step defines a seventh chord, names the 7th chord qualities and identifies the notes that vary between them. The staff diagrams and audio files contain each note individually, ascending from the root, followed by the chord containing all 3 notes. The figured bass symbols for this chord in root position are 7/5/3. On the treble clef, Middle C is shown with an orange ledger line below the main 5 staff lines. These note names are shown below on the treble clef followed by the bass clef. Middle C (midi note 60) is shown with an orange line under the 2nd note on the piano diagram. The 4th note of the C half-diminished 7th chord is Bb The 3rd note of the C half-diminished 7th chord is Gb The 2nd note of the C half-diminished 7th chord is Eb The 1st note of the C half-diminished 7th chord is C C half-diminished 7th chord note names Note no. The chord spelling / formula relative to the C major scale is: 1 b3 b5 b7. The C half-diminished 7th chord contains 4 notes: C, Eb, Gb, Bb. This step shows the C half-diminished 7th chord in root position on the piano, treble clef and bass clef.
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