In
music
Music is generally defined as the art of arranging sound to create some combination of form, harmony, melody, rhythm or otherwise expressive content. Exact definitions of music vary considerably around the world, though it is an aspect ...
, flat (Italian bemolle for "soft B") means "lower in
pitch". Flat is the opposite of
sharp
Sharp or SHARP may refer to:
Acronyms
* SHARP (helmet ratings) (Safety Helmet Assessment and Rating Programme), a British motorcycle helmet safety rating scheme
* Self Help Addiction Recovery Program, a charitable organisation founded in 19 ...
, which is a raising of pitch. In
musical notation
Music notation or musical notation is any system used to visually represent aurally perceived music played with instruments or sung by the human voice through the use of written, printed, or otherwise-produced symbols, including notation fo ...
, flat means "lower in pitch by one
semitone
A semitone, also called a half step or a half tone, is the smallest musical interval commonly used in Western tonal music, and it is considered the most dissonant when sounded harmonically.
It is defined as the interval between two adjacent no ...
(half step)", notated using the symbol which is derived from a stylised lowercase 'b'. For instance, the music below has a key signature with three flats (indicating either
E major or
C minor
C minor is a minor scale based on C, consisting of the pitches C, D, E, F, G, A, and B. Its key signature consists of three flats. Its relative major is E major and its parallel major is C major.
The C natural minor scale is:
:
Cha ...
) and the note,
D, has a flat
accidental.
:
Under
twelve-tone equal temperament
Twelve-tone equal temperament (12-TET) is the musical system that divides the octave into 12 parts, all of which are equally tempered (equally spaced) on a logarithmic scale, with a ratio equal to the 12th root of 2 ( ≈ 1.05946). That resultin ...
,
D for instance is
enharmonically equivalent
In modern musical notation and tuning, an enharmonic equivalent is a note, interval, or key signature that is equivalent to some other note, interval, or key signature but "spelled", or named differently. The enharmonic spelling of a written n ...
to
C, and
G is equivalent to
F. In any other
tuning system
In music, there are two common meanings for tuning:
* Tuning practice, the act of tuning an instrument or voice.
* Tuning systems, the various systems of pitches used to tune an instrument, and their theoretical bases.
Tuning practice
Tun ...
, such enharmonic equivalences in general do not exist. To allow extended
just intonation
In music, just intonation or pure intonation is the tuning of musical intervals
Interval may refer to:
Mathematics and physics
* Interval (mathematics), a range of numbers
** Partially ordered set#Intervals, its generalization from numbers to ...
, composer
Ben Johnston uses a sharp as an accidental to indicate a note is raised 70.6
cents (ratio 25:24), and a flat to indicate a note is lowered 70.6 cents.
In
intonation, flat can also mean "slightly lower in pitch" (by some unspecified amount). If two simultaneous notes are slightly out-of-tune, the lower-pitched one (assuming the higher one is properly pitched) is "flat" with respect to the other. Furthermore, the verb ''flatten'' means to lower the pitch of a note, typically by a
small musical interval.
Key signatures
Flats are used in the
key signature
In Western musical notation, a key signature is a set of sharp (), flat (), or rarely, natural () symbols placed on the staff at the beginning of a section of music. The initial key signature in a piece is placed immediately after the clef at ...
s of
#
F major
F major (or the key of F) is a major scale based on F, with the pitches F, G, A, B, C, D, and E. Its key signature has one flat. Its relative minor is D minor and its parallel minor is F minor
F minor is a minor scale based on F, consis ...
/
D minor
D minor is a minor scale based on D, consisting of the pitches D, E, F, G, A, B, and C. Its key signature has one flat. Its relative major is F major and its parallel major is D major.
The D natural minor scale is:
Changes needed for t ...
(B)
#
B major /
G minor
G minor is a minor scale based on G, consisting of the pitches G, A, B, C, D, E, and F. Its key signature has two flats. Its relative major is B-flat major and its parallel major is G major.
According to Paolo Pietropaolo, it is the con ...
(adds E)
#
E major /
C minor
C minor is a minor scale based on C, consisting of the pitches C, D, E, F, G, A, and B. Its key signature consists of three flats. Its relative major is E major and its parallel major is C major.
The C natural minor scale is:
:
Cha ...
(adds A)
#
A major /
F minor
F minor is a minor scale based on F, consisting of the pitches F, G, A, B, C, D, and E. Its key signature consists of four flats. Its relative major is A-flat major and its parallel major is F major. Its enharmonic equivalent, E-sharp mi ...
(adds D)
#
D major
D major (or the key of D) is a major scale based on D, consisting of the pitches D, E, F, G, A, B, and C. Its key signature has two sharps. Its relative minor is B minor and its parallel minor is D minor.
The D major scale is:
:
Ch ...
/
B minor
B minor is a minor scale based on B, consisting of the pitches B, C, D, E, F, G, and A. Its key signature has two sharps. Its relative major is D major and its parallel major is B major.
The B natural minor scale is:
:
Changes need ...
(adds G)
#
G major
G major (or the key of G) is a major scale based on G, with the pitches G, A, B, C, D, E, and F. Its key signature has one sharp. Its relative minor is E minor and its parallel minor is G minor.
The G major scale is:
Notable compositi ...
/
E minor
E minor is a minor scale based on E, consisting of the pitches E, F, G, A, B, C, and D. Its key signature has one sharp. Its relative major is G major and its parallel major is E major.
The E natural minor scale is:
:
Changes needed ...
(adds C)
#
C major
C major (or the key of C) is a major scale based on C, consisting of the pitches C, D, E, F, G, A, and B. C major is one of the most common keys used in music. Its key signature has no flats or sharps. Its relative minor is A minor and ...
/
A minor
A minor is a minor scale based on A, with the pitches A, B, C, D, E, F, and G. Its key signature has no flats and no sharps. Its relative major is C major and its parallel major is A major.
The A natural minor scale is:
:
Changes ...
(adds F)
The order of flats in the key signatures of music notation, following the
circle of fifths
In music theory, the circle of fifths is a way of organizing the 12 chromatic pitches as a sequence of perfect fifths. (This is strictly true in the standard 12-tone equal temperament system — using a different system requires one interval ...
, is B, E, A, D, G, C and F (
mnemonics
A mnemonic ( ) device, or memory device, is any learning technique that aids information retention or retrieval (remembering) in the human memory for better understanding.
Mnemonics make use of elaborative encoding, retrieval cues, and imager ...
for which include Battle Ends And Down Goes Charles' Father ''and'' Before Eating A Doughnut Get Coffee First).
Related symbols
Double flats also exist, which look like (similar to two flats, ) and lower a note by two semitones, or a whole step. Historically, in order to raise a double flat to a single flat, it was required to use the notation . In modern scores it is acceptable to simply denote this with a single flat .
:
A quarter-tone flat, half flat, or demiflat indicating the use of
quarter tones, may be marked with various symbols including a flat with a slash () or a reversed flat sign (). A three-quarter-tone flat, flat and a half or sesquiflat, is represented by a demiflat and a regular flat ().
:
Although very uncommon, a triple flat () can sometimes be found.
It lowers a note three
semitone
A semitone, also called a half step or a half tone, is the smallest musical interval commonly used in Western tonal music, and it is considered the most dissonant when sounded harmonically.
It is defined as the interval between two adjacent no ...
s, or a whole tone and a semitone.
Unicode
The
Unicode
Unicode, formally The Unicode Standard,The formal version reference is is an information technology Technical standard, standard for the consistent character encoding, encoding, representation, and handling of Character (computing), text expre ...
character ♭ (U+266D) can be found in the
block
Block or blocked may refer to:
Arts, entertainment and media Broadcasting
* Block programming, the result of a programming strategy in broadcasting
* W242BX, a radio station licensed to Greenville, South Carolina, United States known as ''96.3 ...
Miscellaneous Symbols
Miscellaneous Symbols is a Unicode block (U+2600–U+26FF) containing glyphs representing concepts from a variety of categories: astrological, astronomical, chess, dice, musical notation, political symbols, recycling, religious symbols, Bagua, ...
; its
HTML entity
In SGML, HTML and XML documents, the logical constructs known as ''character data'' and ''attribute values'' consist of sequences of characters, in which each character can manifest directly (representing itself), or can be represented by a series ...
is
♭. Other assigned flat signs are as follows:
*
*
See also
*
Sharp (music)
In music, sharp, dièse (from French), or diesis (from Greek) means, "higher in pitch". More specifically, in musical notation, sharp means "higher in pitch by one semitone (half step)". Sharp is the opposite of flat, which is a lowering of pit ...
*
Electronic tuner
In music, an electronic tuner is a device that detects and displays the pitch of musical notes played on a musical instrument. "Pitch" is the perceived fundamental frequency of a musical note, which is typically measured in Hertz. Simple tuner ...
References
External links
*
{{DEFAULTSORT:Flat (Music)
Musical notation
Pitch (music)