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AP Music Theory Chapter 1
Chapter 1 of 17 for LHS AP Music Theory 2019
51
Music
11th Grade
08/14/2019

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Term
Pitch
Definition
Highness or lowness of a tone. In music notation, pitches are represented by symbols positioned on a staff and identified with letter names.
Term
The Staff
Definition
[image]
Term
Letter Names
Definition
The various pitches are referred to by the first seven letters of the alphabet (A B C D E F G)
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Term
Clefs
Definition
A clef is a symbol placed at the beginning of a line of music that establishes the letter names of the lines and spaces of the staff.
Term
Treble Clef
Definition
Also known as G clef is an ornate letter G. The curved line terminates at the second line of the staff, thus designating the letter name of a note on that line as G.
Term
Bass Clef
Definition
Also is known as the F clef because it was derived from the letter F. The dots are placed above and below the fourth line of the staff, designating that line as F.
Term
Grand Staff
Definition
Together, the treble and bass staves make up a grand staff.
The Grand staff is most commonly associated with keyboard music.
[image]
Term
Middle C
Definition
The note that is directly between the Treble and Bass staves in a Grand Staff
Term
Ledger Lines
Definition
Pitches that go beyond the limits of the staff are written by adding ledger lines above or below the staff. Ledger Lines, which parallel the staff, accommodate only one note.
Term
C Clef
Definition
A C clef may be positioned on any line of the staff to designate middle C. This clef is coupled with a set of secondary names that identify each of the possible positions soprano, mezzo-soprano, alto, tenor and baritone
Term
Alto Clef
Definition
Alto Clef puts Middle C on the 3rd line(the very middle)
Term
Tenor Clef
Definition
Tenor Clef puts Middle C on the 4th line
Term
Soprano Clef
Definition
Soprano Clef puts Middle C on the 1st line
Term
Mezzo-Soprano Clef
Definition
Mezzo-Soprano puts Middle C on the 2nd line
Term
Baritone Clef
Definition
Baritone puts Middle C on the 5th line
Term
Octave Identification
Definition
Because the pitch spectrum is so wide, it is often necessary to identify a specific note by the octave in which it appears. Thus, Middle C is distinguished from any other C in the pitch spectrum by the written designation C4
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Term
Accidentals
Definition
Accidentals are symbols that are placed to the left of the noteheads to indicate the raising and lowering of a pitch
Term
Sharp
Definition
(♯) Raising the pitch a half step
Term
Flat
Definition
(♭) lowers the pitch a half step
Term
Natural
Definition
(♮) cancels any previous sharp or flat and returns to the natural, or unaltered, pitch
Term
Double Sharp
Definition
Term
Double Flat
Definition
Term
Interval
Definition
An interval is the relationship between two tones. In Western music, the half step is the smallest interval used. It is the interval between any two adjacent keys —black or white— on the keyboard
Term
Enharmonic Equivalents
Definition
Enharmonic equivalent equivalents are tones that have the same pitch but different letter names
Term
Half-Step Motion
Definition
In passages of music involving half step motion, a flatted note is followed most often by a note with a different letter name a half step lower.
A sharped note is followed most often by a note with a different letter name a half step higher in passages involving half-step motion.
Term
Duration
Definition
Sounds and silences in music are represented by notes and rests. The notation of duration— the length of time a note or rest lasts— is illustrated in the [image]
Term
Breve and Rest
Definition
Worth two whole notes/rests
Term
Whole Note and Rest
Definition
Worth two half notes/rests
Term
Half Note and Rest
Definition
Worth two quarter notes/rests
Term
Quarter Note and Rest
Definition
Worth two eighth notes/rests
Term
Eighth Note and Rest
Definition
Worth two sixteenth notes/rests
Term
Sixteenth Note and Rest
Definition
Worth two thirty-second notes/rests
Term
Thirty-Second Note and Rest
Definition
Worth two sixty-fourth notes/rests
Term
Sixty-Fourth Note and Rest
Definition
Worth two one hundred twenty-eighth notes/rests
Term
Tie
Definition
The Tie is a curved line that two adjacent notes of the same pitch into a single sound with a duration equal to the sum of both note values.
Term
Dot
Definition
Placed to the right of a note head, the dot lengthens the value of the note by half again its value(Dots may also be used with rests and affect them in the same way).
Term
Second Dot
Definition
A second dot lengthens the dotted note by half the length of the first dot.
Term
Irregular Divisions and Subdivisions
Definition
A note value may be divided or subdivided into any number of equal parts as shown in the chart. Those divisions and subdivisions that require added numbers are called irregular divisions and subdivisions.
[image]
Term
Rhythm
Definition
Rhythm is a general term used to describe the motion of music in time.
Term
Pulse or Beat
Definition
The fundamental unit of rhythm is the pulse or beat. Even persons untrained in music generally sense the pulse and may respond by tapping a foot or clapping.
Term
Meter
Definition
Meter can be defined as a regular, recurring pattern of strong and weak beats.
Term
Meter Signatures
Definition
This recurring pattern of durations is identified at the beginning of a composition by a meter signature.
It has two numbers, one on top of the other. The upper digit indicates the number of basic note values per measure. It may not indicate the number of pulses per measure. The lower digit indicates a basic note value: 2 signifies a half note, 4 refers to a quarter note, 8 to an eighth note, and so forth.
Although meter is generally indicated by the time signature, it is important to realize that meter is not simply a matter of notation.
Term
Simple Meter
Definition
In simple meter, each beat is divided in two parts(simple division). The upper numbers in simple meter signatures are usually 2, 3, or 4 indicating 2, 3, or 4 basic pulses. (Rhythm will not be dotted)
Term
Compound Meter
Definition
In compound meter, each pulse is a dotted note, which is divided into groups of three parts(compounded division). The upper numbers in compound meter signatures are usually 6, 9, and 12. In compound meter signatures, the lower number refers to the division of the beat, whereas the upper number indicates the number of these divisions per measure.

Note that the basic pulse in compound meter will be kind of dotted note value.
Term
Duple, Triple, and Quadruple Meters
Definition
Both simple and compound meters will have two, three, or four recurring pulses. Meters are identified as duple if there and two basic pulses, triple if there are three, quadruple if there are four. These designations are often combined with the division names to describe a meter. 2/4 is a simple duple and 6/8 is a compound duple meter.
Term
Asymmetrical Meter
Definition
The term asymmetrical means not symmetrical and applies to those meter signatures that indicate the pulse cannot be divided into equal groups of 2, 3, or 4 beats. The upper numbers in asymmetrical meters are usually 5 or 7.
Term
Syncopation
Definition
If a part of the measure that is usually unstressed is accented the rhythm is considered to be syncopated.
Term
Dynamic Markings
Definition
Dynamic Markings indicate the general volume of sound. Although imprecise, such marks denote approximate levels of intensity. the following words, abbreviations, and signs are common.
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Term
Neumatic Notation
Definition
Not used for telling what the pitch or how long notes were. This was used just as a memory aid for recalling previously learned melodic lines.
Term
Mensural Notation
Definition
Mensural= Measured notation, a system that included durational values as well as pitch, developed during the 1300 century as the single melody and free rhythm of Gregorian Chant or plainsong gave way to measured music that included parts, descants, and later harmony and counter point.
Term
Present Notation
Definition
This is the notation we use currently and it changes now and then to better communicate the growing complexity of the music. This is based on the Mensural Notation, clefs and the shapes of notes have been big changes.
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