Form of Music

 

It can enjoy the musical expression by understanding the music form of music. As for the music that seems to be made freely, the music form that is basic is used for foundation. There are a lot of forms in the music. I will introduce the rondo form and the sonata form in music form.

Rondo Form

It is what became popular in France in about the 18th century. The rondo form is approved on the assumption of the alternation though it paired.

The basic format is A-B-A-C-A-D. This is called a chain rondo. The type of the rondo form of the music in the classical period is A-B-A-C-A-B-A. As for the rondo form as the music form, the change has been often added. It has the key role in compare in addition to a different structure setting the boundary between musical parts. To conclude the entire music, a musical each part is often enlarged.

Moreover, the conclusion of music is independent as a so called coda, becomes a musical part that reaches comparatively widely to greater or lesser degrees, and is gotten.

Sonata Form

The comparison of two subjects that are the tension of the subject, and contrasted structures and the character are an impellent of the music passage. The array of a time element in a double subject and the array of the material have brought the composer the possibility of music in the classical period expression. The sonata form is a form chiefly used for the first movement of the sonata form. This form might be called "Sonata allegro form" because it is performed at a fast tempo. 

The sonata form is used for all of a piano sonata in the classicism age, the string quartet, the symphony, and the concerto. Two subjects of contrasted character are used in the form of a sonata. It is thought that the sonata form has developed from the church sonata in the baroque age. It is originally assumed that it developed from two forms though it is three forms in the appearance.

The sonata form consists of three parts.

   Presentation part － Presentation of subject

   Development part － Laborious work based on motive and subject materials

   Reproduction part － Return of subject

The presentation part starts by presenting the first subject. The passage part where the second subject is prepared comes out when the first subject is presented. The second subject has the character in contrast to the first subject. As for the passage part, the transposition to the dominant key is included. The conclusion part follows the passage part, and the presentation part ends. This might be repeated.

The motive and the component of the presentation part are being freely processed to the middle paragraph by the composer. The comparison between the first subject and the second subject is lost though the reproduction part is a repetition of the presentation part. To often do a connection taking musical, a harmony detour is done to a temporary transposition. To shut the entire music, the place in the presentation part where it is a conclusion part is enhanced.