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Music theory

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Elements of music notation for guitar

Notes

The signs for the tones in music are called notes. There are seven of them, named c, d, e, f, g, a, b. If a passage embraces eigth, nine or more such notes in succession, these names are repeated in the same order. In descending their order is reversed, namely: b, a, g, f, e, d, c.

A note indicates both its pitch and its duration (how long it lasts).
Each note consists of a notehead (either open or filled) and may also have a stem and a beam or flag.
note parts

The notes stand partly on and partly between five horizontal, parallel lines, called the stave; the lines and spaces are reckoned upwards.

Staves

note system

Ledger lines

If notes go so high or so low that there is not room for them on this stave, use is made of little ledger line or leger lines, on which, or between which, these notes are put.
leger lines

Clefs

In order to decide the names of the notes, and to be able to distinguish for what voice a piece of music is intended, we emply three kinds of signs or clefs: the G or violin clef G or violin clef, the C clef C clef, and the bass or F clef bass or F clef.
These clefs are placed on different lines, and the notes on those lines are named accordingly.

For the guitar, however, only the G clef is used; it stands on the second line of the stave, and accordingly the notes for the guitar are :
note names
The easiest way of remembering the notes is first to take the notes on the lines
notes on lines
then those in the spaces
notes between lines
then those below the stave
notes below lines
and finally those above the stave.
notes above lines

Value of notes

In music use is made chiefly of seven kinds of notes, the value or duration of which is signified by their different forms. They are :

  Semibreve     Minim     Crotchet     Quaver     Semiquaver     Demisemiquaver     Semidemisemiquaver  
semibreve minim crotchet quaver semiquaver demisemiquaver semidemisemiquaver

The relative values of these notes are:

1 semibreveduration semibreve
is equal to
2 minimsduration minim
4 crotchetsduration crotchet
8 quaversduration quaver
16 semiquaversduration semiquaver
32 demisemiquaversduration demisemiquaver

Tuplets

There are further groups of three and six notes each, and they have a figure 3 or 6 above them, and are called triplets, or sextolets.
Triplets triplet take up the time of 2 notes of their own kind duplet;
while sextolets sextolet take up the time of four of their kind quadruplet.

Rests

There are likewise seven kinds of rests in common use, and like notes their value is indicated by their form.

duration rest semibreve duration rest minim duration rest crotchet duration rest quaver duration rest semiquaver duration rest demisemiquaver duration rest semidemisemiquaver
Semibreve rest Minim rest Crotchet rest Quaver rest Semiquaver rest Demisemiquaver rest Semidemisemiquaver rest

There are rests of 2 and 4 bars each, thus rests of 2 and 4 bars

Ties

In music notation, a tie is a curved line tie, connecting the heads of two notes of the same pitch, indicating that they are to be played as a single note with a duration equal to the sum of the individual notes' values.

Dots

A dot after a note or rest increases its length by half.
Consequently a semibreve and a dot dot semibreve are worth semibreve and minim that is three minims;
a dotted minim dot minim is worth three crotchets minim and crotchet
a dotted crotchet dot crotchet is worth three quavers crotchet and quaver
etc.
The relation is the same for rests, so dot rest crotchet is equal to rest crotchet and quaver
and dot rest quaver is equal to rest quaver and semiquaver

A second (, third, fourth, ...) dot after a note or rest with a dot increases its length by an additional quarter (, eight, sixteenth, ...) of the note's duration.

Transpositions/Accidentals

There are three signs of transposition, namely the sharp (sharp), the flat (flat) and the natural (natural).
The sharp will raises the note before which it stands a semitone, where as the flat (flat) lowers the note before which it is placed a semitone, while the natural (natural) restores it to its original pitch from which it had been removed by the sharp or flat.
If a sharp or flat is be placed at the beginning of a piece next to the clef, it is called essential, and alters all the notes on that line or in that space throughout the whole piece. But if a sharp or flat occur in the course of a piece before a note, it is called an accidental and it holds good only for the bar in which it occurs.
There are also double sharps (double sharp) which raise an already sharpened note another semitone, or if it be not already sharpened, the double sharp raises it a whole tone; the double flat (double flat) lowers the note it precedes a semitone if it be already lowered one; or if not, then a whole tone.

If a sharp or flat is placed at the beginning of a piece next to the clef, it is called essential and alters all the notes on that line (and all equivalent notes one or more octaves higher or lower) or in that space throughout the whole piece.

Bars

Music is divide into bars (each having the same relative duration), which are separated from each other by perpendicular lines across the staves (also these lines are called bars or barlines)

Time signature

The (relative) duration of a bar is indicated by a time signature.
A time signature is placed after the clef and (key) signature (see Scales).
Simple common time has either four crotchets in a bar and is marked Common time or else two minims, which latter is called Alla breve time and is marked in the signature by Cut time or Cut time.
Another way is to indicate the number and duration of notes by two numbers above each other. The lower digit indicates the note duration (semibreve, minim, crotchet a.s.o.), the upper number indicates the number of notes in a bar, like:

Tempo

Tempo is the speed at which a piece is played. Mostly tempo is indicated at the start of a piece. One way is to specify the beats per minute (or bpm).
Another way is by use of common markings. The beats per minute (bpm) values are very rough approximations and vary widely according to composers and works. The exact sense of many of these terms has changed over time.

MarkingDescriptionBPM
Larghissimoextremely slow24 or less
Adagissimovery slow24-40
Gravevery slow and solemn24–40
Largoslow and broad40–66
Larghettorather slow and broad44–66
Adagioslow with great expression44–68
Adagiettoslower than andante or slightly faster than adagi46–80
Lentoslow52–108
Andanteat a walking pace, moderately slow56–108
Marcia moderatomoderately, in the manner of a march66–80
Andante moderatobetween andante and moderato66–112
Allegrettoby the mid-19th century, moderately fast76–120
Andantinoslightly faster than andante, but slower than moderato80–108
Moderatoat a moderate speed86–126
Allegro moderatoclose to, but not quite allegro96–120
Allegrofast and bright100–156
Molto Allegrovery fast and bright124–160
Allegro vivacevery fast and bright124–160
Vivacelively and fast136–160
Vivacissimovery fast and lively160–184
Allegrissimvery fast and bright160–184
Prestovery fast168–200
Prestissimoextremely fast200 or more

Dynamics

Dynamic markings of a piece specify the variation in loudness between notes or phrases.
Dynamic markings are always relative and never indicate a precise level of loudness.
dynamics text
dynamics

Scale of dynamic markings

NameLettersLevel
pianississimopppvery very quiet
pianissimoppvery quiet
pianopquiet
mezzo-pianompmoderately quiet
mezzo-fortemfmoderately loud
fortefloud
fortissimoffvery loud
fortississimofffvery very loud

Three Italian words are used to show gradual changes in volume:

Signs sometimes referred to as "hairpins" are also used to stand for these words.
hairpins

Scales

A scale is any set of musical notes ordered by fundamental frequency or pitch.
The most common modern Western scales have 7 notes per octave.

To alter a scale a key-signature is used to indicate which notes have to be changed.
In the key-signature at the beginning of a line (or measure if there are key-changes within the piece) one puts the sharps or flats up to seven in the following order:
f, c, g, d, a, e, b for sharps:
accidentals sharps
b, e, a, d, g, c, f for flats:
accidentals flats

A mode is a type of musical scale coupled with a set of characteristic melodic and harmonic behaviors.

Most used modes nowadays are major and minor mode. Every major mode has it's relative minor mode and the latter is always a minor third lower than the former.

The following twelve major and minor modes are in general use:
no sharps or flats:
modes none
with sharps:
modes sharps
with flats:
modes flats

Left hand fingering

To play a note on guitar, a left-hand finger presses a string behind a fret (or none if playing an open string).
Left hand fingering indicates the finger used to press the string to get the desired note.

left hand fingering
Symbol before noteFinger
0no finger (open string)
1index finger
2middle finger
3ring finger
4pinky

Example (Fernando Sor - Op. 35 Vingt quatre exercices très faciles - No. 1 Andante) :
left hand fingering example

Right hand fingering

Right hand fingering indicates which finger is used to create the sound.

right hand fingering
Symbol above/below noteFinger
p(pulgar) thumb
i(indice) index finger
m(medio) middle finger
a(anular) ring finger

Example (Romance - Anonyme):
right hand fingering example

String indication

To indicate to play a note on a certain string a number inside a circle is used (normally above or below that note) :
guitar string indication
The thinnest (highest sounding) string is indicates with 1, the thickest (lowest sounding) string with 6.

Example (Francisco Tárrega - Adelita):
string indication

Left hand position

To indicate the left hand position on the neck Roman numerals are used, sometimes preceded by B or C (barre), or ½ B or ½ C (partial barre).

The two abbreviations "B", "C", represent the terms barre or bar, cejillo or capotasto.
A barre is a technique by using one finger to press down multiple strings across a single fret.
A full barre presses all strings, a partial barre a part of all the strings.

Roman numerals without the "B" or "C" indicates fingerboard position only, with
I: first fret, II: second fret, ...

Example (Matteo Carcassi - Op. 60 Vingt cinq études mélodiques et progressives - No. 1 Allegro):
left hand position example

International pitch notation

International pitch notation concerns only how pitch names are notated, that is, how they are designated in printed and written text, and does not inherently specify actual frequencies.
Thus, the use of scientific pitch notation to distinguish octaves does not depend on the pitch standard used.
The notation makes use of the traditional tone names (A to G) which are followed by numbers showing which octave they are part of.
For standard A440 pitch equal temperament, the system begins at a frequency of 16.35160 Hz, which is assigned the value C0.

notes above lines
Ten Cs in scientific pitch notation

notes above lines
An 88-key piano, with the octaves numbered and Middle C (cyan) and A440 (yellow) highlighted.

Tuning

The standard tuning for guitar is (from lowest to highest sounding string):
E2, A2, D3, G3, B3, E4
See the table of note frequencies.

Sound:
guitar strings sound
Notation:
guitar strings notation
The 8 below the clef is indicating that the sound is an octave lower than the notation indicates.
Often the 8 below the clef omitted in scores for guitar.