In music, a double whole note (American), breve, (British) or double note [1] [2] lasts two times as long as a whole note (or semibreve). It is the second-longest note value still in use in modern music notation. [2] The longest notated note is the longa, which could be double or triple the length of a breve, although its use is most commonly found in early music. The longest notated note (though now obsolete) is the maxima .
In medieval mensural notation, the brevis was one of the shortest note lengths in use, [3] hence its name, which is the Latin etymon of "brief". In "perfect" rhythmic mode, the brevis was a third of a longa, or in "imperfect" mode, half a longa. [4] [ vague ]
In modern notation, a breve is commonly represented in either of two ways: by a hollow oval note head, like a whole note, with one or two vertical lines on either side, as on the left and right of the image, or as the rectangular shape also found in older notation, shown in the middle of the image. [5] [6]
Because it lasts longer than a bar in most modern time signatures in common use, the breve is rarely encountered except in English music, where the half-note is often used as the beat unit. [7]
A related symbol is the double whole rest (double rest or breve rest), which usually denotes a silence for the same duration. [2] [8] ) Double whole rests are drawn as filled-in rectangles occupying the whole vertical space between the second and third lines from the top of the musical staff. They are often used in long silent passages which are not divided into separate bars to indicate a rest of two bars, regardless of the duration of each bar. [9] This and longer rests are collectively known as multiple rests. [10] They are also used to represent whole bar rest for time signature 4
2 only.
Alla breve, the time signature 2
2, takes its name from the note value breve. In the mensural notation of the Renaissance, it was an alternative term for proportio dupla, which meant that the brevis was to be considered the unit of time ( tactus ), instead of the usual semibrevis. The old symbol 
, used as an alternative to the numerical proportion 2:1 in mensural notation, is carried over into modern notational practice to indicate a smaller relative value per note shape. It is normally used for music in a relatively quick tempo, where it indicates two minim (half note) beats in a bar of four crotchets (quarter notes), while 
is the equivalent of 4
4, with four crotchet beats. [11]
Musical notation is any system used to visually represent auditorily perceived music, played with instruments or sung by the human voice through the use of symbols, including notation for durations of absence of sound such as rests. The act of deciphering or reading a piece using musical notation, is known as "reading music".
A time signature is a convention in Western music notation that specifies how many note values of a particular type are contained in each measure (bar). The time signature indicates the meter of a musical movement.
A quarter note (American) or crotchet (British) is a musical note played for one quarter of the duration of a whole note. Quarter notes are notated with a filled-in oval note head and a straight, flagless stem. The stem usually points upwards if it is below the middle line of the staff, and downwards if it is on or above the middle line. An upward stem is placed on the right side of the notehead, a downward stem is placed on the left. The Unicode symbol is U+2669.
In music, a half note (American) or minim (British) is a note played for half the duration of a whole note and twice the duration of a quarter note. It was given its Latin name because it was the shortest of the five note values used in early medieval music notation. Half notes are notated with a hollow oval notehead like a whole note and straight note stem with no flags like a quarter note. The half rest denotes a silence of the same duration. Half rests are drawn as filled-in rectangles sitting on top of the middle line of the musical staff, although in polyphonic music the rest may need to be moved to a different line or even a ledger line. As with all notes with stems, half notes are drawn with upward stems on the right when they are below the middle line of the staff and downward stems on the left when they are on or above the middle line. In vocal music, notes on the middle line have a downward stem instead of an upward stem.
A whole note (American) or semibreve (British) in musical notation is a single note equivalent to or lasting as long as two half notes or four quarter notes.
An eighth note (American) or a quaver (British) is a musical note played for one eighth the duration of a whole note (semibreve). Its length relative to other rhythmic values is as expected—e.g., half the duration of a quarter note (crotchet), one quarter the duration of a half note (minim), and twice the value of a sixteenth note. It is the equivalent of the fusa in mensural notation.
A ledger line or leger line is used in Western musical notation to notate pitches above or below the lines and spaces of the regular musical staff. A line slightly longer than the note head is drawn parallel to the staff, above or below, spaced at the same distance as the lines within the staff.
In musical notation, a bar is a segment of music bounded by vertical lines, known as bar lines, usually indicating one of more recurring beats. The length of the bar, measured by the number of note values it contains, is normally indicated by the time signature.
A rest is the absence of a sound for a defined period of time in music, or one of the musical notation signs used to indicate that.
Braille music is a braille code that allows music to be notated using braille cells so music can be read by visually impaired musicians. The system was incepted by Louis Braille.
The numbered musical notation is a cipher notation system used in Mainland China, Taiwan, Hong Kong, and to some extent in Japan, Indonesia, Malaysia, Australia, Ireland, the United Kingdom, the United States and English-speaking Canada. It dates back to the system designed by Pierre Galin, known as Galin-Paris-Chevé system. It is also known as Ziffernsystem, meaning "number system" or "cipher system" in German.
Alla breve – also known as cut time or cut common time – is a musical meter notated by the time signature symbol , which is the equivalent of 2
2. The term is Italian for "on the breve", originally meaning that the beat was counted on the breve.
In medieval music, the rhythmic modes were set patterns of long and short durations. The value of each note is not determined by the form of the written note, but rather by its position within a group of notes written as a single figure called a ligature, and by the position of the ligature relative to other ligatures. Modal notation was developed by the composers of the Notre Dame school from 1170 to 1250, replacing the even and unmeasured rhythm of early polyphony and plainchant with patterns based on the metric feet of classical poetry, and was the first step towards the development of modern mensural notation. The rhythmic modes of Notre Dame Polyphony were the first coherent system of rhythmic notation developed in Western music since antiquity.
In music notation, a note value indicates the relative duration of a note, using the texture or shape of the notehead, the presence or absence of a stem, and the presence or absence of flags/beams/hooks/tails. Unmodified note values are fractional powers of two, for example one, one-half, one fourth, etc.
Mensural notation is the musical notation system used for polyphonic European vocal music from the late 13th century until the early 17th century. The term "mensural" refers to the ability of this system to describe precisely measured rhythmic durations in terms of numerical proportions between note values. Its modern name is inspired by the terminology of medieval theorists, who used terms like musica mensurata or cantus mensurabilis to refer to the rhythmically defined polyphonic music of their age, as opposed to musica plana or musica choralis, i.e., Gregorian plainchant. Mensural notation was employed principally for compositions in the tradition of vocal polyphony, whereas plainchant retained its own, older system of neume notation throughout the period. Besides these, some purely instrumental music could be written in various forms of instrument-specific tablature notation.
A longa, long, quadruple note (Am.), or quadruple whole note is a musical note that could be either twice or three times as long as a breve, four or six times as long as a semibreve, that appears in early music. The number of breves in a long was determined by the "modus" or "mode" of a passage. Sections in perfect mode used three breves to the long while sections in imperfect mode used two breves to the long. Imperfect longs, worth two breves, existed in perfect mode from the earliest sources, while the fourteenth century saw the introduction of perfect longs, worth three breves, in imperfect mode through the use of dots of addition.
In medieval music theory, the Latin term modus can be used in a variety of distinct senses. The most commonly used meaning today relates to the organisation of pitch in scales. Other meanings refer to the notation of rhythms.
In music, a 1/16, sixteenth note (American) or semiquaver (British) is a note played for half the duration of an eighth note (quaver), hence the names. It is the equivalent of the semifusa in mensural notation, first found in 15th-century notation.
A maxima, duplex longa, larga, or octuple whole note was a musical note used commonly in thirteenth and fourteenth century music and occasionally until the end of the sixteenth century. It was usually twice or, rarely, three times as long as a longa, four or six or nine times as long as a breve, and 8, 12, 18, or 27 times as long as a semibreve. Like the stem of the longa, the stem of the maxima generally pointed downwards except occasionally when it appeared on the bottom line or space. Before around 1430, the maxima was written with a solid, black body. Over the course of the fifteenth century, like most other note values, the head of the maxima became void.
