chorale variations

[English] Baroque organ composition in which a chorale is the basis for a set of variations.

In music, variation is a formal technique where material is repeated in an altered form. The changes may involve melody, rhythm, harmony, counterpoint, timbre, orchestration or any combination of these.

Background. "Theme and variation" is a popular musical form in which a composer states a melody and then repeats it several times with changes to create more interest and variety. Some famous examples of this form are Charles Ives' "Variations on America" and Mozart's "Twelve Variations on Vous dirai-je, Maman" K.

Voice classification is a tool for singers, composers, venues, and listeners to categorize vocal properties and to associate roles with voices. In choral music arrangements each of these voices is represented by a letter - S for soprano, A for alto, T for tenor, and B for bass.

Variation means a deviation from the norm, like the variation of colors in nature. A variation from an accepted standard can be very important. For example, a variation in a heartbeat pattern can tell a doctor that a heart attack might be imminent.

Techniques for Composing Variations

1. Repeat the accompaniment from your theme or from another variation with small additions/changes.
2. Repeat the melody from your theme or from another variation with small additions/changes.
3. Repeat the melody from your theme or from another variation on the bass stave.

Variation as a musical form, however, is something special. Essentially you take a self-sufficient musical theme and repeat it, but with significant alterations, so that its character and meaning are transformed.

Variation that results from the passage of genetic information from parents to offsprings is called inherited variation. Example – eye colour, hair colour, lobed or lobeless ears, etc. Note: Variation is too necessary in respect to evolution, without variation evolution cannot take place.

These four parts will be referred to as “ voices ”, and we will first work within in a format known as “ chorale ” or SATB style. The four parts are labeled by their range, from highest to lowest: Soprano (S), Alto (A), Tenor (T), and Bass (B).

A choir (/ˈkwaɪər/ KWIRE; also known as a chorale or chorus) is a musical ensemble of singers. Choral music, in turn, is the music written specifically for such an ensemble to perform.

Examples of types of variation include direct, inverse, joint, and combined variation. What Is Direct Variation? In direct variation, as one variable is multiplied by a constant and increases, another variable (the quotient) also increases.

: the act or process of varying : the state or fact of being varied. b. : an instance of varying. c. : the extent to which or the range in which a thing varies.