page_title: Guitar chord
section_title: Seventh chords: Major-minor chords with dominant function
hierarchical_section_title: Guitar chord / Musical fundamentals / Chords in music theory / Seventh chords: Major-minor chords with dominant function
caption_attribution_description: English: Paul McCartney during a Wings concert. Français&#160;: Paul McCartney pendant un concert des Wings (version rognée).
context_page_description: In music, a guitar chord is a set of notes played on a guitar. A chord's notes are often played simultaneously, but they can be played sequentially in an arpeggio.
  The implementation of guitar chords depends on the guitar tuning. Most guitars used in popular music have six strings with the "standard" tuning of the Spanish classical guitar, namely E-A-D-G-B-E'; in standard tuning, the intervals present among adjacent strings are perfect fourths except for the major third. Standard tuning requires four chord-shapes for the major triads.
  There are separate chord-forms for chords having their root note on the third, fourth, fifth, and sixth strings. For a six-string guitar in standard tuning, it may be necessary to drop or omit one or more tones from the chord; this is typically the root or fifth. The layout of notes on the fretboard in standard tuning often forces guitarists to permute the tonal order of notes in a chord.
  The playing of conventional chords is simplified by open tunings, which are especially popular in folk, blues guitar and non-Spanish classical guitar.
context_section_description: Adding a minor seventh to a major triad creates a dominant seventh (denoted V7). In music theory, the "dominant seventh" described here is called a major-minor seventh, emphasizing the chord's construction rather than its usual function. Dominant sevenths are often the dominant chords in three-chord progressions, in which they increase the tension with the tonic "already inherent in the dominant triad".
  The dominant seventh discussed is the most commonly played seventh chord.
  An A-major I-IV-V7 chord progression A-D-E7 was used by Paul McCartney in the song "3 Legs" on his album Ram.
  These progressions with seventh chords arise in the harmonization of major scales in seventh chords.
caption: Paul McCartney used an A-major I-IV-V7 chord-progression in "3 Legs", which is also an example of the twelve-bar blues.
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