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New standard tuning (NST) is an alternative tuning for the guitar that approximates all-fifths tuning.The guitar's strings are assigned the notes C2-G2-D3-A3-E4-G4 (from lowest to highest); the five lowest open strings are each tuned to an interval of a perfect fifth {(C,G),(G,D),(D,A),(A,E)}; the two highest strings are a minor third apart (E,G).
To build chords, Fripp uses "perfect intervals in fourths, fifths and octaves", so avoiding minor thirds and especially major thirds, [64] which are slightly sharp in equal temperament tuning (in comparison to thirds in just intonation). It is a challenge to adapt conventional guitar-chords to new standard tuning, which is based on all-fifths ...
The implementation of chords using particular tunings is a defining part of the literature on guitar chords, which is omitted in the abstract musical-theory of chords for all instruments. For example, in the guitar (like other stringed instruments but unlike the piano ), open-string notes are not fretted and so require less hand-motion.
The Blues for Alice changes, Bird changes, Bird Blues, or New York Blues changes, is a chord progression, often named after Charlie Parker ("Bird"), which is a variation of the twelve-bar blues. The progression uses a series of sequential ii–V or secondary ii–V progressions, and has been used in pieces such as Parker's " Blues for Alice ".
ii–V–I progression, in C, illustrating the similarity between them Subdominant, supertonic seventh, and supertonic chords. According to Richard Franko Goldman's Harmony in Western Music, "the IV chord is, in the simplest mechanisms of diatonic relationships, at the greatest distance from I. In terms of the [descending] circle of fifths, it ...
In a jazz band, these chord changes are usually played in the key of B ♭ [7] with various chord substitutions.Here is a typical form for the A section with various common substitutions, including bVII 7 in place of the minor iv chord; the addition of a ii–V progression (Fm 7 –B ♭ 7) that briefly tonicizes the IV chord, E ♭; using iii in place of I in bar 7 (the end of the first A ...
The vi chord before the IV chord in this progression (creating I–vi–IV–V–I) is used as a means to prolong the tonic chord, as the vi or submediant chord is commonly used as a substitute for the tonic chord, and to ease the voice leading of the bass line: in a I–vi–IV–V–I progression (without any chordal inversions) the bass ...
The progression is also used entirely with minor chords[i-v-vii-iv (g#, d#, f#, c#)] in the middle section of Chopin's etude op. 10 no. 12. However, using the same chord type (major or minor) on all four chords causes it to feel more like a sequence of descending fourths than a bona fide chord progression.