Musical Notes
Numbers 1 to 7 represent the seven scale degrees in a diatonic major scale. For example, in C major, the numbers correspond to the notes and the solfège as follows:
Note: C D E F G A B
Solfège: do ré mi fa sol la si
Notation: 1 2 3 4 5 6 7
In G major:
Note: G A B C D E F♯
Solfège: do ré mi fa sol la si
Notation: 1 2 3 4 5 6 7
Octaves
A dot above a musical note raises it to a higher octave, while a dot below a note lowers it by an octave. For example, “6” with a dot below is at an octave lower than “6”. Musical scales can thus be written as follows:
.
Major scale: 1 2 3 4 5 6 7 1
Natural minor scale: 6 7 1 2 3 4 5 6
. .
The number of dots equals the number of octaves raised or lowered. Where there is more than one dot above or below the number, the dots are vertically stacked.
Where there are note length lines (see section on “Note Length”) underneath the numbers, any dots are placed below the lines.
Chords
Chords are represented by vertically stacking the notes, with the lowest note at the bottom as with Western notation. Each note has its own octave dots, but only the lowest note has the length lines (see section on “Note Length”).
Arpeggiated chords are notated by writing the standard Western arpeggiation symbol to the left of the chord.
Note Length
The plain number represents a quarter note. Each underline halves the note length: one line represents an eighth note, two lines represent a sixteenth note, and so on. Dashes after a note lengthen it, with each dash extending the length by a quarter note.
A dot after the plain or underlined note increases its length by half, and two dots by three quarters (similar to a dotted note in Western notation).
The underline, along with its joining, are analogous to the number of flags and beaming in standard notation. So are dotted notes. But the analogue stops at notes worth 3 quarter notes and beyond, where dashes are used instead.
Whole note: 1 - - -
Half note: 1 -
Quarter note: 1 Dotted quarter: 1.
Eighth note: 1 Dotted eighth: 1.
Sixteenth note: 1 Dotted sixteenth: 1.
= =
Musical Rest
The number “0” represents the musical rest. Similar to the rules that indicate note length, a “0” represents a quarter rest, while a “0” represents an eighth rest. For rests longer than a quarter rest, it is customary to repeat “0” instead of adding dashes. For example, two “0 0” represent a half rest.
Unlike the standard notation, there is no single symbol for the bar rest. The bar rest of 3/4 time is “| 0 0 0 |” and the bar rest of 4/4 time is “| 0 0 0 0 |”. For brevity the multi-bar rest symbol used in standard notation may also be adopted.
Undetermined Pitch
When notating rhythms without pitch (i.e. for unpitched percussion instruments), the symbol “X” or “x” replace numerals. For example, a common clap pattern used in cheers can be written like this:
4/4 > >
Clap: | X X X X X | X X X X 0 X X ||
Bar Lines
Bar lines, double bar lines, end bar lines, repeat signs, first- and second-endings look very similar to their counterparts in Western notation.
When several lines of music are notated together to be sung or played in harmony, the bar lines usually extend through all the parts. However, when notating music for a two-handed instrument (such as the Guzheng), it is common for the bar lines of each hand to be drawn separately, but a score bracket to be drawn on the left of the page to “bind” the two hands together.
Accidentals and Key Signature
The numbered notation uses a movable Do (scale degree 1) system. The key signature defines the pitch of “1”. For example, “1=C” means “C major”. Minor keys are based on the natural minor or the Aeolian mode, and the key signature defines the pitch of “6” of the minor key’s relative major. So “6=A” means “A minor”, the tonic of which is written as 6. Naturally, the Dorian mode of D should be marked as “2=D” and based on 2.
Similar to the Western notation, accidentals are placed before the notes “1 2 3 4 5 6 7” to raise or lower the pitch. For example, in C major, “♯5” represents a sharped scale degree 5 (G#).
Time Signature
The time signature is written as a fraction: 2/4, 3/4, 4/4, 6/8, etc. It is usually placed after the key signature.
A metronome marking may be placed immediately after the time signature if the time signature is part-way through the music, or below it if the time signature is at the beginning.
(Source: Numbered musical notation)