Quiz 8

Question 1

What is vibrato?

Answer 1

oscillation in pitch involving variation of a 1/2 step, and variation of amplitude, aspect of mature sound- contributes to richness of tone, 6-8 oscillations, natural phenomenon as they maintain breath control and a relaxed vocal apparatus

Question 2

Reasons that vibrato is appropriate

Answer 2

improved tonal quality/color
improves intonation
improves fundamental frequency
prevents vocal fatigue

Question 3

Problems of Singers without vibrato

Answer 3

imitation of poor tonal model
breathy or glottal onset
incorrect breath pressure
tension in vocal mechanism
high larynx position

Question 4

Possible causes of wobble and one exercise

Answer 4

lack of proper breath support/ weak ab muscles
lack of use of laryngeal muscles
slackness in vocal folds
heavy style of production
exercise- slides to a fifth

Question 5

What is tremolo and one exercise?

Answer 5

fast vibrato rate, 8-10 fluctuations in pitch/ sec
singers have strident, harsh sound
caused by- excessive breath pressure and laryngeal tension
exercise- onset and breathing

Question 6

How do the Vox Humana and Voce Umana organ stops support the use of vibrato in Baroque and Renaissance music?

Answer 6

humana- uses reed pipes which resonate at different freq, creating vibrato. umana- flute pipes that are mistuned, uses tremulant causes wind pressure to vary

Question 7

why do choral directors desire less vibrato for certain rep?

Answer 7

if they want to single specific voices/ draw attention from the audience to a particular phrase
piece has dissonance since vibrato creates intonation

Question 8

how is healthy vibrato related to a coordinated onset?

Answer 8

vocal folds must be simultaneous with the flow of air, helps to produce vibrato