Basic Elements of Music Theory Flashcards
Section I of USAD Music Resource Guide terms and definitions
Music
Sound organized in time
Sound
A wave of energy consisting of both amplitude and frequency
440 Hz
Sounds like an A above middle C
Between which cycles per second will the human ear hear a single, sustained pitch?
20 and 20,000 cycles per second
Percussion instruments provide most of these sounds in music
Non-pitched sounds
Ethnomusicologist
The modern term for scholars who study the music of other cultures, or who study multiple cultures comparatively
Curt Sachs and Erich von Hornbostel
Created the four Sachs/Hornbostel classifications for instruments
Chordophones
Have one or more strings, which are plucked, bowed, or struck (violins, harps, guitars, violas, cellos, double bass, lute, etc.)
Aerophones
Brass and wind instruments that feature a vibrating column of air (horns and lutes)
Membranophones
Have a skin or other membrane stretched across some frame; the membrane vibrates when struck (timpani, bass drum, snare, tambourines, etc.)
Idiophones
The body of the instrument itself vibrates when struck (marimba, xylophone, vibraphone, tubular bells, gongs, cymbals, triangle, wood block, etc.)
Electrophones
A later-added fifth category to the Sachs/Hornbostel classifications, which create sound waves using an oscillator and are dependent upon electricity (synthesizers, etc.)
Centuries before Sachs and Hornbostel, Western orchestral instruments were grouped into
Families
Strings
Usually bowed or plucked; correlate closely to chordophones
Brass
Aerophones made of metal, and are sounded by the performer’s buzzing lips (trumpet, trombone, French horn, tuba, flugelhorn, baritone, bugle, etc.)
Woodwinds
Aerophones in which the column of air is moved by breath alone or by one or two vibrating reeds made from wood (flutes, recorders, piccolos, oboes, clarinets, bassoons, saxophones, etc.)
Percussion
Includes membranophones and idiophones, plus some chordophones that are struck rather than bowed or plucked, such as the piano
Theremin
One of the best-known early electronic instruments in which the performer regulates frequency with one hand and amplitude with the other
Musique concrete
Electronically generated sounds and sound produced by live instruments were recorded on tape, where they could be edited, manipulated, and mechanically recombined to form collages of sound that were “performed” via loudspeaker
Where were the first practitioners of musique concreté based?
Paris
What are the basic techniques of tape music?
Looping and splicing
Which four cities had famous postwar centers for electronic music?
Rome, Paris, Cologne and New York City
Pitch
The highness or lowness of a sound, which consists of a steadily oscillating sound wave
What happens when halve the length of a string on a guitar and play it?
The string vibrates twice as fast and plays a pitch that is twice as high
Octave
The interval between one pitch and the next higher or lower value of the same pitch
Where is middle C located on a keyboard?
To the left of the group of two black keys closest to the middle of the keyboard
Half step
The distance between any two adjacent pitches; also known as a semitone
Whole step
The distance between every other adjacent pitch
Scale
A sequence of pitches in ascending or descending order
Natural keys
The white keys of a keyboard, which span through the first seven alphabetical letters
Which French word does clef come from?
Key
Treble clef
Indicates that the second line from the bottom of the staff is the pitch “G” (also known as the “G-clef” for this reason)
Bass clef
Indicates that the fourth line from the bottom of the staff should be read as the pitch “F” (also known as the “F-clef” for this reason)
C-clef
It is centered on a line that is read as middle C (also known as alto clef)
Tenor clef
When the C-clef is centered on the fourth line from the bottom of the staff
Grand staff
Two bracketed staves used in piano music in which the left hand plays the bass clef on the lower staff and the right hand plays the treble clef on the upper staff
Fundamental
The lowest sound heard when a pitch is played; the loudest and strongest
Partials
The faint presence of higher pitches that “color” the fundamental when the pitch is played
When did equal temperament become the dominant tuning system?
After 1750
Chromatic scale
The twelve different pitches in ascending order by half steps
Enharmonic pitches
Two different labels for the same pitch (e.g. Eb and D#)
Double-sharp
Raised by two half steps
Double-flat
Lowered by two half steps
Diatonic scale
A set of seven pitches as the basis for a piece of music when arranged in ascending order
Tonic pitch
Also known as the “resting tone” or “Do,” this is the first pitch in a diatonic scale and anchor
Dominant pitch
The fifth scale degree, which acts as a second gravitational center that sets melodies in motion by pulling them away from the tonic
Leading tone
The seventh scale degree; it would sound very unstable to stop at this pitch when playing a scale
Interval
The distance between any two pitches; any can be performed so that it is harmonic or melodic
What are some intervals that exceed an octave?
The major ninth, the minor ninth, the major tenth, and the minor tenth
What is the major scale’s sequence of intervals?
whole-whole-half-whole-whole-whole-half (U-U-V-U-U-U-V)
What do all minor scales have?
A lowered third scale degree (interval from the tonic to the third pitch is a minor third)
Natural minor scale
The half steps are located between pitches 2-3 and 5-6. Additionally, the major scale’s upward pull from 7 to 8 is not present.
Harmonic minor mode
Created by raising the seventh scale degree one half step to create that pull from 7 to 8
Melodic minor mode
Both the sixth and seventh scale degree are raised a half step as the scale ascends; they are restored to their “natural minor” pitches as the scale descends
Relative major and minor scales
A major and minor scale that uses the same seven pitches (just different tonics)
Parallel scales
Major and minor scales that begin and end on the same tonic pitch
Blues scale
Scale degrees 3 and 7 can be either lowered, normal, or somewhere in between using a pitch “between the keys” of the piano
Melody
A series of successive pitches perceived by the ear to form a coherent whole
Conjunt
The melody moves smoothly, in a stepwise motion, in mostly half steps and whole steps
Disjunct
The melody contains proportionally more leaps (intervals larger than a major second)
What is a viola’s range?
C3 to E6
What is a cello’s range?
C2 to A5
Soprano
Higher-register female singer
Alto
Lower-register female singer
Tenor
Higher-register male singer
Bass
Lower-register male singer
Rhythm
The way music is organized in time
Beat
The steady pulse that underlies most music
Tempo
The speed of the beat
Lento (Grave)
Very slow (40 bpm)
Adagio
Slow (72 bpm)
Andante
“At a walking tempo” (84 bpm)
Moderato
Moderate (108 bpm)
Allegro
Fast; “cheerful” (120 bpm)
Presto
Very fast (200 bpm)
Ritardando
Tempo slows down
Accelerando
Tempo speeds up
Poco a poco
Gradually
Subito
Suddenly
Rubato
Tempo speeds up and slows down for expressive effect
Unmetered
No discernable beat and no steady tempo
Downbeat
Also known as the strong beat, it is the first beat of any measure
Meter
Describes the pattern of emphasis superimposed on groups of beats
Duple meter
Two-beat pattern with a STONG-weak-STRONG-weak pulsation
Triple meter
Three-beat pattern with a STRONG-weak-weak-STRONG-weak-weak pulsation