18th Century UNT

The classic era began to include contrasting moods within a single theme rather than expressing a unique affection. The contrast in counter melodies and themes with frequent changes from long notes to shorter notes, syncopations, gradual dynamics, unpredicted pauses, and a variety of keys would change gradually, or suddenly to express a particular emotion the composer wants to project. The example is a fragment from the Flute Concerto No.1 in G (K. 313) by Wolfgang Amadeus Mozart, which represents some of these characteristics. 

The melody in the Galant style interrupts the preceding melodic tendency with a sequence of short, well-defined phrases of two to four measures in length. These phrases establish a period and a melodic style that is characterized by frequent cadences. The melody from the beginning of Mozart Flute Concerto in G (K.313) is an example of the characteristics of the melody in the Galant style. 

The cadenza is an ornamental solo passage written in score or improvised by the soloist with a free rhythmic style and virtuously performance. In the 18th century, the concerto cadenza established that the soloist improvises the cadenza in the first movement before the last orchestral ritornello. A 6/4 orchestral chord introduces the cadenza, and for its culmination, the soloist indicates the close of the cadenza with a trill over a dominant chord. The example is a fragment of the end of the cadenza from the Flute Concerto No.1 in G (K. 313) by Wolfgang Amadeus Mozart.