Performance Flashcards
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For sound to be produced, there must be a vibration, or p___o___ through a medium that is transmitted through the air, then through the MECHANICAL STRUCTURE of the ear to be perceived as sound in the brain. The SOURCE of the oscillation can be any simple _____, which as it moves through space creates fluctuations in the _____ of the surrounding air.
The string of a violin, the membrane of a percussion instrument, and the reed of a wind instrument all act as ______.
ENERGY imparted to them through the motion of a bow, the strike of a drumstick, or wind blown across the reed act to set the o_____ in motion. The subsequent physical vibration of the surrounding air travels as c___s___w___ in an OUTWARD direction. As these sound waves travel towards the listener, the m____ of the human ear drum perceives the sound waves and converts the frequencies into a___p___ where the listener will hear either a tone or noise.
pressure oscillation;
resonator;
pressure;
resonators;
oscillations;
complex sound waves;
membrane;
aural perception;
In ACOUSTICS, a pure tone is defined as a _____ wave whose frequency _____ over time.
A tone produced BY AN INSTRUMENT, however, is not a simple sine wave, but is in fact a ______wave. No musical instrument produces a pure tone.
Frequency, measured in _____ as the number of ______over time, is perceived by the human ear as _____.
When an instrument plays a sound, there is a primary r_____ frequency called the _____. When it plays the sound, there are also h____ and o____.
The _____frequencies resonate at multiples of the fundamental frequency, and change the overall waveform into a ______waveform.
Pure tones contain no ___or___. The various timbres of the different instruments are greatly dependent on the waveform p______ of the COMPLEX wave.
simple sine;
stays constant;
complex;
Hertz;
cycles;
pitch
resonating;
fundamental frequency;
harmonics and overtones;
harmonic;
composite;
harmonics or overtones;
profile;
For a singer, RESONANCE plays an important role in enabling the voice to “carry,” with a more vibrant and rich sound. Acoustically, the sound ORIGINATES through the passing of AIR through the vibrating vocal chords; this movement creates the ____or PITCH that the audience hears. As the sound moves from the vocal cords to the ____, the specific sound PROPERTIES such as ____ and other resonating properties are created.
The vocal tract has optimal resonances for certain ______, and it is important for the singer to maximize the resonances of the vibrating vocal tract with the specific _______. For this reason, many sopranos will maximize vocal resonance at HIGH frequencies by creating _____ in the oral cavity and relaxing the ______ so that the resultant sound is vibrant and sonorous (rich, full).
frequency;
vocal tract;
vowels;
frequencies;
pitch frequencies;
more space;
vocal tract;
There are multiple different sound properties that make up an instrument’s tone quality. First, an instrument’s tone is a _____ wave that is composed of many different _____ frequencies; unlike a simple sine wave that has only the fundamental frequency and no partial frequencies, the sound of a complex wave will VARY WIDELY, given the profile of the complex wave form, contributing greatly to the various instrumental _____.
Another sound property that affects an instrument’s tone quality is the nature of the r___b___. Once the vibrations of the instrument are set into motion, the surrounding air will r_____ through the instrument’s body. The resonating bodies each have their own unique set of c___r___, known as f___, further giving each instrument it’s own unique tone quality.
complex;
partial;
timbres
resonating body;
resonate;
complex resonances;
formants;
In a choral blocked section, the vocal parts are solidly s_____ from _____ so all sopranos are grouped at one end from front to back, altos next to them from front to back, tenors next to the altos and basses on the other end. The choral sound from a blocked formation tends to be better suited for ____pieces, but can create issues of the singers being able to _____.
In a choral columnar section, the vocal parts are separated into _____, with TENORS behind the _____, and BASSES behind the _____. A column formation suits ______music, as it is easier for singers to hear for _____.
In a MIXED choral formation, the sopranos, altos, tenors, and basses are INDIVIDUALLY ____ in SATB pattern. A mixed formation is good for i____ and the mixing of sound at the a____, but may require more training in singing i______.
separated;
front to back;
homophonic;
listen to other parts;
columns; sopranos; altos; polyphonic; balance;
alternating;
intonation;
audience;
independently.
When creating an arrangement for instrumental ensemble formations, there are several key _______ considerations for the given ensemble to execute the optimal performance. A general guideline holds that ____ instruments with important melody lines should sit near the _____, so the audience can easily hear them.
The seating arrangement of the ensemble should be so that when accompanying parts play _____ to balance with the melody, those instruments will not pull back so softly as deficiency, but will still be able to support the ______ expressively and imaginatively. Thus, instrument groups with similar lines should be seated______ as well as instrument groups with ______. This allows the musicians to be more aurally aware of the ensemble and to play with more confidence and freedom.
acoustical;
softer;
front;
softer;
melody line;
together;
counter-melodies;
A football field would have ____ reverberation time, as the direct signal would be weakened in the LONG DISTANCES it takes to reach the bleachers as well as the lack of a ____ to reflect the sound waves. A rehearsal room would have slightly more reverberation time, given the presence of a ceiling.
Reverberation times vary considerably depending on the w___m___. A concert hall would have ____ reverb than a rehearsal room, and a CATHEDRAL would have the most reverberation time, with highly reflective walls and the intricate ceilings in which sound waves would have multiple points to ___ and ___.
little;
ceiling
wall materials;
more;
reflect and travel
Reverberation time is the time it takes for sound to _____, usually by ___ decibels from its direct signal. When the direct signal interacts with the materials of space, some of the energy is a_____ by objects or by wall materials, while the rest is r______. As the sound bounces off surfaces, the RESULTANT sound waves are known as _____.
Many factors affect reverberation time, including s___ of the space, m______ in the space, c____ height, s___ of the space, and the amount of p____ in the space. The longest reverberation times tend to be those of c____ and LARGE c___h___, while those of the shortest times are OPEN FIELDS or s____ rehearsal rooms.
decay; 60; absorbed; reflected; reverberation;
size; materials; ceiling; shape; people; cathedrals; concert halls; soundproof;
Sound waves undergo r___, d____, and r____ in a performance space.
As sound waves leave the source, the energy of the air r____ SPHERICALLY from the source. This direct sound continues to move outwards until it hits a p___s____. Depending on the a_____ of the physical surface, the sound is either absorbed into ___ by an ABSORBENT surface, (thereby lessening the _____ of the sound), or it is r____ by a HARD surface, (thereby _____ the direction of the radiating sound waves. As sound waves reflect back towards the source, they create the acoustical phenomenon of ______, as the listener continues to hear the ____ sound, followed closely by the ____ sound.
reflection;
diffraction;
refraction;
radiates; physical surface; absorbency; heat; intensity; reflected; redirecting; reverberation; direct; reflected
Frequency refers to the number of o____ of a w____ per s____ (also known as H____).
Pitch is the human perception of the frequency of a soundwave, and can be affected by d____ from the source, a_____, p_____, and m____ expectation.
The average human can hear frequencies between ____. In music, relevant frequencies range from ______.
For the most part, humans hear higher frequencies of oscillations as _____pitches, and lower frequencies of oscillations as _____pitches. Over time, certain frequencies have been _____ for a particular pitch. For example, the note a’, has been measured at 440 Hz since the 20th century.
oscillations;
waveform;
second;
Hertz
distance;
amplitude;
physiology;
mental
16 Hz and ~20,000 Hz;
20 Hz to 5,000 Hz;
higher;
lower;
standardized;
For every sound wave, there are two basic aspects to consider: _____ and _____.
Frequency refers to the number of s___w___ per s___, also known as H____.
Amplitude refers to the h_____ of the sound wave, and is measured in d_____. Variations in amplitude are generally perceived by the human ear as changes in LOUDNESS; the higher the decibel, the___ the sound.
Variations in amplitude can also be perceived in an a___of t___. A plucked tone has a SHARP ATTACK, and the waveform reaches its peak amplitude ______, while the amplitude gradually _____ as the sound fades away.
Variations in amplitude can also be found in t___and v___. Although vibratos are usually known as ____modulation, and tremolos are generally known as ____modulation, in execution, BOTH FORMS OF MODULATION are usually present.
frequency;
amplitude;
sound waves;
second;
Hertz
height;
decibels;
louder;
attack of tone;
quickly;
decreases;
tremolos and vibratos;
frequency;
amplitude;
The concept of partials refers to the specific ACOUSTIC property of a___t___. The most basic tone, a _____wave , has a frequency f; that determines the PITCH of the wave.
In musical sound, however, sound waves are usually much more ____ than those of a PURE TONE, and consist of several different frequencies that become superimposed into one COMPLEX SINE WAVE that the human listener perceives as a s____t____. The different frequencies of the complex wave are termed p_____ and change the DISPLACEMENT of the combined frequencies.
The partial frequencies give the different instruments their unique TIMBRES, as the different components of the sound produced by the instrument superimpose to a unique c___w___ configuration of p____ over time.
audible tones;
pure sine;
complex;
single tone;
partials;
complex wave;
configuration;
pressure;
The concept of overtones refers to a specific ACOUSTIC property of sound. For every one frequency, there are MULTIPLE OTHER FREQUENCIES that v____ through the resonant space through its normal ____. Every instrument has a distinct set of normal ____ that vibrate through certain frequencies, giving its _____.
The lowest sounding frequency is the ______. All other frequencies above this one are termed ______.
Overtones are p___ frequencies that can be _____ or _____.
Harmonic overtones are those that are _____ multiples of the fundamental. MOST musical instruments have overtone frequencies that are near to their _____ frequencies. Instruments such as brass instruments, gongs, cymbals, and timpanis have overtone frequencies that are more DISTINCT from their harmonic frequencies.
vibrate;
modes;
modes;
timbre and tone.
fundamental frequency;
overtones;
partial;
harmonic; non-harmonic;
integral (essential);
harmonic;
The concept of harmonics refers to a specific ACOUSTIC property of sound. For every one frequency called the FUNDAMENTAL frequency, there exists a SERIES of other frequencies called the h___s__ that are INTEGRAL multiples of the fundamental: f1, f2, f3, etc. For every fundamental frequency, f, the frequency of the ____ is equal to f times n.
The harmonic frequencies have acoustically p_____ tones, and most approximate the p____ in standard Western music tuning: the first harmonic occurs ____above the fundamental, the 2nd harmonic occurs _____above, the 3rd harmonic occurs_____above, the 4th occurs_____above; etc.
The HARMONIC SERIES helps to define the human perception of ____; it is so integral, in fact, that humans still perceive the fundamental pitch of the harmonic series even when the _____ is missing.
harmonic set;
nth harmonic;
pure; pitches; an octave; an additional 5th; an additional 4th; an additional 3rd;
pitch;
fundamental frequency;
When executing good choral blend, singers must pay attention to their use of ____modification, d____, and vocal v_____.
When singing in a choir, s__-m___ is key in knowing when to adjust sound levels in accordance with surrounding musicians. Good choral blend should prioritize uniform s____, t____, and t____.
vowel;
dynamics;
vibrato;
self-monitoring;
sound, texture, and tone.
Spacing within any chorus is of key importance in a healthy choral collaboration. If a singer cannot hear themselves, productive c_____ could be hindered and inaccurate i______ could become detrimental to the individual and the group.
S___-m_____ is key in productive collaboration. Self-monitoring includes active l___ and constant a____ to the surrounding performers.
collaboration;
intonation;
Self-monitoring
listening;
adjusting;
Both choral balance and choral blend refer to the c____ sound provided from the group of singers. For a chorus to be BALANCED, there should be an equal ____ of sound coming from ALL RANGES of voices.
Choral BLEND refers to the uniformity of v___f___ and t___ among the singers. Uniform choral blend is achieved by the i____ of each vocal range and by each individual’s DILIGENCE to the same standard of TONE PRODUCTION and BLEND.
collective;
level;
vowel formation;
tone;
intensity;
In a 6/8 conducting pattern , the hand moves _____.
In a 9/8 pattern, it goes ______. (strong beats are beats 1 and 4 for both of these meters)
The downbeat of a pattern always indicates the ____ pulse. Also, the last beat of the pattern is always the _____pulse and is indicated by an _____stroke of the hand.
down on the first beat, then inward on 2 and 3, outward on 4 and 5 and upward on 6;
down on 1, in on 2,3, out on 4,5,6, up on 7, and up and in on 8, 9
strongest;
weakest;
upward
When conducting in compound meter, if there exists a secondary strong beat, then the movement of the hand is ALMOST AS STRONG as the movement of the downbeat.
When conducting, the movement of the hand in a 3 or 4 beat pattern moves so that _____between the baton hand and the free hand are AVOIDED.
Conductors may choose to indicate ______PULSES such as 8 pulses in a slow 4/4 movement, or to indicate ______PULSES in a fast movement, such as conducting only the downbeats of a fast 3/4 waltz.
collisions;
subdivided;
fewer;
When conducting, feet should be _____, with one foot slightly more ____ to maintain optimal balance. The knees should _____, and equal weight should be given to each foot. The arms should be in _____ position, using both the baton hand and the free hand ready to i___the p___b___. The elbows should be ____the body and slightly f___, ready to engage the ensemble. The wrists should be_____ and neither limp nor stiff.
The pattern that conductors choose to conduct should be determined by __(t, s, m)__. In 2/4 time, the conductor should indicate_____. However, if the 2/4 is taken at vivace it would be impractical to conduct every beat, and an indication of the ___ would suffice.
Excessive movements could convey _____, which could slow down the ensemble. If the 2/4 meter is taken at adagio, the conductor could facilitate rhythmic fluidity and continuity by _____, so that forward movement is not lost.
shoulder-width apart; forward; not bend; attention; indicate the preparatory beat; away from; forward; flexible
tempo, style, and meter;
EVERY beat;
downbeat;
heaviness;
doubling the number of beats (indicating the quarter-note subdivision for a 4/4 pattern)
When conducting a fermata, several considerations should be made: the t___ and presence or absence of a r_____, the l_____ of the fermata, the presence or absence of a r___ after the fermata, and resuming t____ if the music continues.
If the fermata is on the last note of a piece, the conductor should gesture in a c___ motion in a ____ direction as long as the fermata is to be held. IF the music continues after a fermata without a break, the conductor should gesture slightly ___-ward and ___-ward to incorporate the _____ for the next note.
If the music continues after the fermata with a rest, the conductor should indicate a ______ and resume with the ____ of the intended TEMPO of the next section.
tempo; ritardando; length; rest; tempo
circular; downward; outward; upward; preparation beat;
cut-off;
preparation beat;
In conducting, there are several types of gestural indications: p___ beats, a___ beats, and p____ beats. A conductor should use all three types of beats in variation to elicit musical changes such as s___transitions, s____, h____ and other important musical events.
Conductors use preparatory beats to _____ an ensemble before an attack and before a release to allow the ensemble to a___ the c___ of a held note. Preparatory beats should indicate the t___, s___, and e___ of the music to be played.
Conductors use active beats to signal an i___c___ or action. Typical changes that may be indicated by an active beat include: m___, l___, s___, and a___.
Passive beats do NOT require an i___c___, but help to indicate r___, o___, and other SIMPLE pulses.
preparatory beats, active beats, and passive beats; sectional transitions, syncopations, hemiolas;
ready; anticipate the cutoff; tempo; style; expression
immediate change; marcato; legato; staccato; accents
immediate change;
rests;
offbeats