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96-button Stradella bass layout on an accordion. C is in the middle of the root note row. The Stradella Bass System (sometimes called [1] standard bass) is a buttonboard layout equipped on the bass side of many accordions, which uses columns of buttons arranged in a circle of fifths; this places the principal major chords of a key (I, IV and V) in three adjacent columns.
In contrast, in the chord-scale system, a different scale is used for each chord in the progression (for example mixolydian scales on A, E, and D for chords A 7, E 7, and D 7, respectively). [5] Improvisation approaches may be mixed, such as using "the blues approach" for a section of a progression and using the chord-scale system for the rest. [6]
A guitarist performing a C chord with G bass. In Western music theory, a chord is a group [a] of notes played together for their harmonic consonance or dissonance.The most basic type of chord is a triad, so called because it consists of three distinct notes: the root note along with intervals of a third and a fifth above the root note. [1]
Cadential second-inversion chords are typically used in the authentic cadence I 6 4-V-I, or one of its variation, like I 6 4-V 7-I. In this form, the chord is sometimes referred to as a cadential 6 4 chord. The chord preceding I 6 4 is most often a chord that would introduce V as a weak to strong progression, for example, making -II-V into II-I 6
Diagonal barre chord: major seventh chord on G. [12] Play ⓘ The first finger frets both the second fret on the first string and the third fret on the sixth string. A diagonal barre chord is a "very rare chord" involving "the barring of a couple of strings with the first finger [diagonally] on different frets." [12]
A chord is inverted when the bass note is not the root note. Chord inversion is especially simple in M3 tuning. Chords are inverted simply by raising one or two notes by three strings; each raised note is played with the same finger as the original note. Inverted major and minor chords can be played on two frets in M3 tuning.
[4] A chord may also have chromatic notes, that is, notes outside of the diatonic scale. Perhaps the most basic chromatic alteration in simple folk songs is the raised fourth degree (♯) that results when the third of the ii chord is raised one semitone. Such a chord typically functions as the secondary dominant of the V chord (V/V).
User manuals and user guides for most non-trivial PC and browser software applications are book-like documents with contents similar to the above list. They may be distributed either in print or electronically. Some documents have a more fluid structure with many internal links. The Google Earth User Guide [4] is an example of