Music Theory - Structure and Form
Small Scale Structures
The variations are based on the theme and can differ in texture, melody, harmony, rhythm and tempo, or any combination of these.
Sonata Form
Often used in the first movement of a symphony or concerto.
Ground Bass
Round
A song where each part sings the same melody but starts at different times.
Canon
The melody in the first part is repeated exactly by another part, while the first part continues with different material.
Fugue
The main theme is taken up by different parts in turn, but instead of being repeated exactly it is developed and varied.
Strophic
In a song the fame music used for each vers of lyrics link in a hymn.
Through-Composed
In a song the different music used for each vers of lyrics.
Verse-Chorus Form
In its most simple version, verse-chorus form just alternates verses and choruses. There is usually an intro (introduction) and sometimes an outro (like a coda).
Many songs will include a bridge (a contrasting section) for variety.
Large Scale Structures
Some examples of large scale structures are:
- Concerto: a work for solo instrument with an orchestral accompaniment usually in three movements.
- Symphony: a work for orchestra usually in four movements.
- Sonata: a work for solo instrument usually in three movements.
- Oratorio: a work for choir, vocal soloists and orchestra, set to a religious text and in a number of different movements
Test Yourself
What is the difference between a strophic and through-composed song?
What is the name for the following structure: ABACADA?
What are the three main sections in sonata form?
What is the difference between a fugue and canon?