Nashville Number System
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The Nashville Number System is a method of transcribing music by denoting the
scale degree In music theory, the scale degree is the position of a particular note on a scale relative to the tonic—the first and main note of the scale from which each octave is assumed to begin. Degrees are useful for indicating the size of intervals ...
on which a chord is built. It was developed by Neal Matthews Jr. in the late 1950s as a simplified system for the Jordanaires to use in the studio and further developed by Charlie McCoy. It resembles the
Roman numeral Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are written with combinations of letters from the Latin alphabet, ea ...
and
figured bass Figured bass is musical notation in which numerals and symbols appear above or below (or next to) a bass note. The numerals and symbols (often accidental (music), accidentals) indicate interval (music), intervals, chord (music), chords, and non- ...
systems traditionally used to transcribe a
chord progression In a musical composition, a chord progression or harmonic progression (informally chord changes, used as a plural, or simply changes) is a succession of chords. Chord progressions are the foundation of harmony in Western musical tradition from ...
since the 1700s. The Nashville Number System was compiled and published in a book by Chas. Williams in 1988. The Nashville Number System can be used by anyone, including someone with only a rudimentary background in
music theory Music theory is the study of theoretical frameworks for understanding the practices and possibilities of music. ''The Oxford Companion to Music'' describes three interrelated uses of the term "music theory": The first is the "Elements of music, ...
.
Improvisation Improvisation, often shortened to improv, is the activity of making or doing something not planned beforehand, using whatever can be found. The origin of the word itself is in the Latin "improvisus", which literally means un-foreseen. Improvis ...
structures can be explained using numbers, and chord changes can be communicated mid-song by holding up the corresponding number of fingers. The system is flexible and can be embellished to include more information (such as chord color or to denote a bass note in an inverted chord). The system makes it easy for bandleaders, the record producer, or the lead vocalist to change the key of songs when recording in the studio or playing live since the new key has to be stated before the song is started. The rhythm section members can then use their knowledge of harmony to perform the song in a new key.


Scale degrees and major chords

The Nashville Number System (also referred to as NNS) is similar to (movable-do) Solfège, which uses "Dó Ré Mi Fá Sol Lá Sí" to represent the seven scale degrees of the Major scale. It is also similar to
roman numeral analysis In music theory, Roman numeral analysis is a type of Harmony, harmonic analysis in which chord (music), chords are represented by Roman numerals, which encode the chord's Degree (music), degree and Function_(music), harmonic function within a given ...
; however, the NNS instead uses Arabic numerals to represent each of the scale degrees. In the key of C, the numbers would correspond as follows: The key may be specified at the top of the written chord chart or given orally by the bandleader, record producer, or lead singer. The numbers do not change when transposing the composition into another key. They are relative to the new Tonic. The only required knowledge is the major scale for the given key. Unless otherwise noted, all numbers represent major chords, and each chord should be played for one measure. So in the key of C, the Nashville Number System notation: 1 4 1 5 represents a four-bar phrase in which the band would play a C major chord (one bar), an F major chord (one bar), a C major chord (one bar), and a G major chord (one bar). Here is an example of how two four-bar phrases can be formed to create a section of a song. Accidentals modifying a scale degree are usually written to the left of the number. 7 ("flat 7") represents a B major chord in the key of C, or an A major chord in the key of B or an F major chord in the key of G.


Chord type

A number by itself (without any other notation) is assumed to represent a major chord. Minor chords are noted with a dash after the number or a lowercase m; in the key of D, 1 is D major, and 4- or 4m would be G minor. Often in the NNS, songs in minor keys will be written in the 6- of the relative major key. So if the song was in G minor, the key would be listed as B major, and G minor chords would appear as 6-. If a chord root is not in the scale, the symbols or can be added. In the key of C major, an E triad would be notated as 3. In the key of A major, an F major triad would be notated as 6. Other chord qualities such as major sevenths, suspended chords, and dominant sevenths use familiar symbols: 47 5sus 57 1 would stand for F7 Gsus G7 C in the key of C, or E7 Fsus F7 B in the key of B. A2 means "add 2" or "add 9". Chord inversions and chords with other altered bass notes are notated analogously to regular slash chord notation. In the key of C, C/E (C major first inversion, with E bass) is written as 1/3; G/B is written as 5/7; Am/G (an inversion of Am7) is written as 6m/5; F/G (F major with G bass) is 4/5. Just as with simple chords, the numbers refer to scale degrees; specifically, the scale degree number used for the bass note is that of the note's position in the tonic's scale (as opposed to, for example, that of its position in the scale of the chord being played). In the key of B, 1/3 stands for B/D, 5/7 stands for F/A, 6m/5 stands for Gm/F, and 4/5 stands for E/F.


Chord qualities


Rhythm and articulation

NNS charts also use unique rhythmic symbols, and variations in practice exist. A diamond shape around a number indicates that the chord should be held out or allowed to ring as a whole note. Conversely, the marcato symbol ^ over the number, or a
staccato Staccato (; Italian for "detached") is a form of Articulation (music), musical articulation. In modern notation, it signifies a note of shortened duration, separated from the note that may follow by silence. It has been described by theorists and ...
dot underneath, indicates that the chord should be immediately choked or stopped. The "push" symbol ("<" and ">" are both used) syncopates the indicated chord, moving its attack back one-eighth note to the preceding "and". A sequence of several chords in a single measure is notated by underlining the desired chord numbers. (Some charts use parentheses or a box for this.) If two numbers are underlined, it is assumed that the chord values are even. In 4/4 time, that would mean the first chord would be played for two beats, and the second chord would be played for two beats. 2- 5 1 means a minor 2 chord for two beats, then a 5 chord for two beats, then a 1 chord for four beats. If the measure is not evenly divided, beats can be indicated by dots or hash marks over the chord numbers. Three dots over a given chord would tell the musician to play that chord for three beats. Alternatively, rhythmic notation can be used.


Example

"After You've Gone" by Creamer and Layton 1918 Verse, mm.7-23 ( and, for comparison, the score ): Chorus, mm.24-43 ( and, for comparison, the score ):


See also

* * Nashville E9 tuning and
Nashville tuning (high strung) Nashville or high-strung tuning refers to the practice of replacing the Guitar string#Wound strings, wound E, A, D and G strings on a six-string guitar with lighter gauge strings to allow tuning an octave higher than Guitar tunings#Standard, sta ...
* Numbered musical notation


References


External links


Diamond on the 1
– a "gig bag book" by Nashville musician Jonathan Riggs that introduces the basic concepts of the Nashville Number System
Interactive NNS chartLearn the Nashville Number System
– information on rhythm notation is included in the Flash-based "Nashville Number System Quiz and Rhythm Tutorial". It also includes a separate Flash-based ear training quiz.

"Ok.. it's a standard 12 bar in "G" but add a 2 on the bridge ...kick it off from the 5 ... hit the 4 on the way down, and then into the 1 ... watch me for the 2"
The Nashville Number Fake Book
by Trevor de Clercq – This book includes a detailed overview of the Nashville Number System as well as complete charts for 200 acclaimed country songs.
The Nashville Number System
– Site for the book ''Song Charting Made Easy: a Play-along Guide to the Nashville Number System'' by Jim Riley, with a preview including charts and play-along music tracks

– a chart with (auto-playing) audio explanation and playthrough by Jimi Whitelaw, Chip Hardy, Rod Lewis, and Tim Grogan of Nashville Demo Studio. Shows standard musical notation such as repeat signs, D.S. al coda, rhythmic notation, and
staccato Staccato (; Italian for "detached") is a form of Articulation (music), musical articulation. In modern notation, it signifies a note of shortened duration, separated from the note that may follow by silence. It has been described by theorists and ...
dots used in a Nashville Number System chart. {{Chord symbols Musical notation Accompaniment Rhythm section Country music