Pleas ! 15 ! 1. a |v_| cadence is called a. authentic b. half c. plagal d. deceptive 2. the smallest unit of musical form that makes sense on its own is a a. period b. phrase c. cadence d. measure 3. two put together as antecedent and consequent are known as a a. periods; phrase b. cadence; phrase c. phrases; cadence d. phrases; period\ 4. which of these cadence types is most likely to occur at the end of a consequent phrase? a. authentic b. half c. plagal d. deceptive

1. A |V_| cadence is called
a. Authentic b. Half c. Plagal d. Deceptive

The IV-I cadence is called a PLAGAL cadence. Although it is an effective cadence, it isn’t as strong or complete as the perfect V-I, thus is may be found in the middle of the composition, leaving the stronger cadence for the grand finale.

2. The smallest unit of musical form that makes sense on its own is a
a. Period b. Phrase c. Cadence d. Measure 

The correct answer is B. Phrase.
A Phrase is built from figures, motifs, and cells, and combining to form melodies, periods and larger sections.
This title has been given by John D. White, but the idea has existed for centuries, although the musical metric system used to be very different way back in the days, in ancient times.

3. Two put together as antecedent and consequent are known as a .
a. Periods; Phrase b. Cadence; Phrase c. Phrases; Cadence d. Phrases; Period\

The correct answer is D. Phrases; Period.
In fact, a Period if created by the combination of two Phrases, each of which beginning with the same basic motif – as defined by the Oxford Companion to Music. The origins of the concept of musical Periods can be found back in the 16th Century.

4. Which of these cadence types is most likely to occur at the end of a consequent phrase?
a. Authentic b. Half c. Plagal d. Deceptive

The Authentic Cadence is the best one to end a consequent phrase. V (dominant) is also the most common chord progression for a strong ending; it builds up tension, which is then relieved when you move on to the I (tonic) chord. (This progression is called V-I).

i believe their role is to instruct certain sections on when they are to join and when they are to stop