Bass note

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Bass note, described in picture, of a C major triad Play. The bass note of the triad is also the root of the triad in this scenario; but this is not always the case with triads, such as in the case of inverted triads. Bass Note.png
Bass note, described in picture, of a C major triad Play . The bass note of the triad is also the root of the triad in this scenario; but this is not always the case with triads, such as in the case of inverted triads.
A/A (alternately notated as A Major/A bass) notated in regular notation (on top) and tabulature (below)Play. Ab-over-A slash chord.png
A/A (alternately notated as A Major/A bass) notated in regular notation (on top) and tabulature (below) Play .

In music theory, the bass note of a chord or sonority is the lowest note played or notated. If there are multiple voices it is the note played or notated in the lowest voice (the note furthest in the bass.)

Three situations are possible:

  1. The bass note is the root or fundamental of the chord. The chord is in root position.
  2. One of the other pitches of the chord is in the bass. This makes it an inverted chord
  3. The bass note is not one of the notes in the chord. Such a bass note is an additional note, coloring the chord above it. The name of such a chord is also notated as a slash chord.
Examples with bass note in red: C major chord in root position close position (C), open position (C), first inversion (E), second inversion (G), and cluster on C (C). Play Bass note examples.png
Examples with bass note in red: C major chord in root position close position (C), open position (C), first inversion (E), second inversion (G), and cluster on C (C). Play

In pre-tonal theory (Early music), root notes were not considered and thus the bass was the most defining note of a sonority. See: thoroughbass. In pandiatonic chords the bass often does not determine the chord, as is always the case with a nonharmonic bass.[ citation needed ]

Root notes and bass notes in an 18th century Chorale (bass notes are red, roots are blue, and bass notes which are also roots are purple) Play Leading-tone triad and secondary leading-tone triad in Chorale Gotte der Vater, wohn' uns bei colored roots and bass.png
Root notes and bass notes in an 18th century Chorale (bass notes are red, roots are blue, and bass notes which are also roots are purple) Play

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<span class="mw-page-title-main">Major chord</span> Chord having a root, a major third, and a perfect fifth

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<span class="mw-page-title-main">Root (chord)</span> Musical note characterizing a chord

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<span class="mw-page-title-main">Thirteenth</span> Musical interval

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<span class="mw-page-title-main">Root position</span> Term in music

The root position of a chord is the voicing of a triad, seventh chord, or ninth chord in which the root of the chord is the bass note and the other chord factors are above it. In the root position, uninverted, of a C-major triad, the bass is C — the root of the triad — with the third and the fifth stacked above it, forming the intervals of a third and a fifth above the root of C, respectively.

<span class="mw-page-title-main">Slash chord</span> A chord whose bass note is indicated by a slash

In music, especially modern popular music, a slash chord or slashed chord, also compound chord, is a chord whose bass note or inversion is indicated by the addition of a slash and the letter of the bass note after the root note letter. It does not indicate "or". For example, a C major chord (C) in second inversion is written C/G or C/G bass, which reads "C slash G", "C over G" or "C over a G bass". Some chords may not otherwise be notated, such as A/A. Thus, a slash chord may also indicate the chord form or shape and an additional bass note.

<span class="mw-page-title-main">Second inversion</span>

The second inversion of a chord is the voicing of a triad, seventh chord, or ninth chord in which the fifth of the chord is the bass note. In this inversion, the bass note and the root of the chord are a fourth apart which traditionally qualifies as a dissonance. There is therefore a tendency for movement and resolution. In notation form, it is referred to with a c following the chord position. In figured bass, a second-inversion triad is a 6
4
chord, while a second-inversion seventh chord is a 4
3
chord.

Inversions are not restricted to the same number of tones as the original chord, nor to any fixed order of tones except with regard to the interval between the root, or its octave, and the bass note, hence, great variety results.

<span class="mw-page-title-main">Voicing (music)</span> Placement of notes in music

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  2. The simultaneous vertical placement of notes in relation to each other; this relates to the concepts of spacing and doubling
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<span class="mw-page-title-main">Seventh (chord)</span> Musical chord

In music, the seventh factor of a chord is the note or pitch seven scale degrees above the root or tonal center. When the seventh is the bass note, or lowest note, of the expressed chord, the chord is in third inversion.

Musicians use various kinds of chord names and symbols in different Contexts Chord notation is a system used to represent chords in written music or chord charts. It typically consists of one or more letters representing the root note of the chord, along with additional symbols or letters indicating the chord quality, extensions, and alterations. For example, the chord notation "CMA J7" represents a C major seventh chord, while "Dm7b5" represents a D minor seventh flat five chord. Chord notation allows musicians to quickly understand and play various chords in a piece of music without having to read the full musical score. to represent musical chords. 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:

  1. the root note,
  2. the chord quality,
  3. whether the chord is a triad, seventh chord, or an extended chord,
  4. any altered notes,
  5. any added tones, and
  6. the bass note if it is not the root.

A chordioid, also called chord fragment or fragmentary voicing or partial voicing, is a group of musical notes which does not qualify as a chord under a given chord theory, but still useful to name and reify for other reasons.

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