samba em preludio-verse 3 and coda

What changes are made to the instrumentation at the start of verse 3?

The acoustic guitar drops out.

Describe the melodic use of the acoustic bass guitar and the voice in this verse.

The voice sings the melody of verse 2 and the acoustic bass guitar plays the melody of verse 1. This creates a duet feel between the parts.

What texture is being created by the duet?

Contrapuntal

Explain the structure of verse 3.

Like verse 2, it is based on a 16 bar idea that is repeated and varied. However, this time, the first 16 bars are based on a duet between the two melodies of verse 1 and 2 then in the second 16 bars, the music returns to the second half of verse 2 through the use of a Dal Segno (D.S.)

The coda is based on a shorter sequence of chords. What is this known as?

The turnaround.

How does the harmonic sequence of the coda relate to jazz?

The turnaround was is used in jazz pieces either to repeat and round off a piece or to help return the music to the start of a particular section.

What is a melodic feature of the bass line during the coda?

It contains a lot of chromatic movement.

The piece ends with a flourish by the acoustic guitar. Describe the rhythmic and melodic features of this flourish.

It is played in free time. There are lots of triplets. The melodic movement is mostly based on a repeating 6 note idea of conjunct movement.