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By PresentationPoint

CounterPoint is a multimedia queue management system for shops. It enhances staff productivity and delivers customer satisfaction. Enhance your shop’s productivity by streamlining waiting queues with multimedia screens that are displaying company information, product information and the current ‘now serving’ number. Combine old-style counter display functionality with multimedia advertising. Run a dynamic presentation designed with Microsoft PowerPoint. Switch between general slides in idle time and counter display in peak times. Display a sound or notification signal when the counter updates.

counterpoint, art of combining different melodic lines in a musical composition. It is among the characteristic elements of Western musical practice.

The word counterpoint is frequently used interchangeably with polyphony. This is not properly correct, since polyphony refers generally to music consisting of two or more distinct melodic lines while counterpoint refers to the compositional technique involved in the handling of these melodic lines. Good counterpoint requires two qualities: (1) a meaningful or harmonious relationship between the lines (a “vertical” consideration—i.e., dealing with harmony) and (2) some degree of independence or individuality within the lines themselves (a “horizontal” consideration, dealing with melody). Musical theorists have tended to emphasize the vertical aspects of counterpoint, defining the combinations of notes that are consonances and dissonances, and prescribing where consonances and dissonances should occur in the strong and weak beats of musical metre. In contrast, composers, especially the great ones, have shown more interest in the horizontal aspects: the movement of the individual melodic lines and long-range relationships of musical design and texture, the balance between vertical and horizontal forces, existing between these lines. The freedoms taken by composers have in turn influenced theorists to revise their laws.

The word counterpoint is occasionally used by ethnomusicologists to describe aspects of heterophony—duplication of a basic melodic line, with certain differences of detail or of decoration, by the various performers. This usage is not entirely appropriate, for such instances as the singing of a single melody at parallel intervals (e.g., one performer beginning on C, the other on G) lack the truly distinct or separate voice parts found in true polyphony and in counterpoint. Finally, contemporary theorists generally use the word counterpoint in a narrow sense for musical styles resembling those of Palestrina or Bach and emphasizing clear melodic relationships (e.g., melodic imitation) between the voice parts.

Counterpoint can be considered more broadly, however, as an essential element in many styles within Western music. Composers in different periods have used counterpoint differently: in the Middle Ages they used it for the superimposing of different rhythmic groupings; in the Renaissance for melodic imitation; in the Baroque for contrasts between groups of instruments or voices; in the Classical period in conjunction with tonality, the organization of music in terms of key; in the Romantic in the combining of leitmotifs, or short melodic fragments; and in 20th-century music in the arrangement of isolated components of sound.

Counterpoint in the Middle Ages

The earliest examples of actual written counterpoint appear in the late 9th-century treatise Musica enchiriadis. Here a plainchant melody, or “principal voice” (vox principalis), is combined with another part, “organal voice” (vox organalis), singing the same melody in parallel motion a perfect fourth or fifth below (e.g., G or F below C).

Such music was called organum, probably because it resembled the sound of contemporary organs. In the early 11th century the teacher and theorist Guido of Arezzo in his Micrologus described a variety of organum in which the accompanying or organal voice had become more individualized. In addition to moving parallel to the main voice, it included oblique (diverging or converging) motion and contrary (opposite) motion. In this era the organal voice remains melodically awkward and subservient to the chant voice, as though it were composed one note at a time simply to colour or ornament each note of the chant. Early organum is thus not far removed from heterophony. Until the end of the 11th century organum was written entirely in note-against-note style, described, in 1336, as punctus contra punctum (point against point—i.e., note against note), hence the name counterpoint.

In the 12th century true polyphony comes into being; the melodic lines become individualized mostly by being given different rhythms. There emerges a hierarchy between the voice parts. The emphasis is upon the chant voice, which now becomes the lower part. Its notes are prolonged, or “held,” and this part is now called the tenor, from the Latin tenere, to hold. The contrapuntal genius of the Middle Ages realizes itself mostly through the use of rhythmic contrasts between the different voice parts, and such contrasts gradually increase in complexity from c. 1100 to c. 1400. Around 1200 Pérotin, composer at Notre Dame in Paris who wrote some of the earliest music in three and four parts, superimposed different rhythmic modes (short fixed rhythmic patterns) in the voice parts. In his three-part Alleluia Nativitas, the voices are in different rhythmic modes, and they are also distinguished by different phrase lengths, consisting of more or fewer repetitions of the rhythmic pattern.

During the 13th century such contrasts were carried still further in the motet, a musical form usually in three voice parts, each in a different rhythmic mode. The theorist Franco of Cologne advocated the use of consonance at the beginning of each measure; such consonances (usually a chord made up of the unison, fifth, and octave, such as C–G–C) served as fixed pillars in terms of which the horizontal extensions of different rhythmic lengths were like soaring arches of sound. The tenor voice part in the motets of the 14th and early 15th centuries was organized by huge rhythmic recurrences known as isorhythm (i.e., the return throughout the piece of a complex rhythmic pattern, not necessarily in conjunction with the same pitches of the melody). During the 14th century, particularly in the works of Guillaume de Machaut, the upper voice part was sometimes displaced by a beat or more in respect to the other parts, giving it further rhythmic independence. In the late 14th century complicated syncopations (displaced accents) and the simultaneous use of different metres characterized some of the most complex counterpoint in history.

The Renaissance

If the medieval composer explored mostly the possibilities of rhythmic counterpoint, the Renaissance composer was concerned primarily with melodic relationships between the voice parts. The predominant technique used was that of imitation; i.e., the successive statement of the same or similar melody in each of the voice parts so that one voice imitates another.

Imitation had appeared earlier in the Italian caccia and French chace, roundlike vocal forms of the 14th century, and in England in the 13th-century round, Sumer is icumen in. These compositions anticipate the Renaissance and also emphasize the rhythmic relationships typical of medieval counterpoint.

During the Renaissance the technique of imitation contributed to a new unity between the voices, as opposed to the hierarchy found in medieval counterpoint. Renaissance composers strove also for clear melodic relationships between voices; consequently imitations usually began on the same beat of a measure and were separated in pitch by simple intervals such as the fifth (as, C–G) or octave (as, C–C). The Renaissance theorists, among them Johannes Tinctoris and Gioseffo Zarlino, categorized dissonances according to type and governed each type by definite rhythmic and melodic restrictions.

What is often proclaimed as the “golden age” of counterpoint—meaning melodic counterpoint—stretches from the late 15th to the late 16th century, from the Flemish master Jean d’Okeghem to the Spanish Tomás Luis de Victoria and the Elizabethan William Byrd. Its leading masters were Josquin des Prez, Giovanni Pierluigi da Palestrina, and Orlando di Lasso. The northern composers in particular showed a penchant for complex melodic relationships. Okeghem’s Missa prolationum (Prolation Mass), for example, involves simultaneous canons in two pairs of voices. (In a canon, one melody is derived from another. It may be identical, as in a round, or it may be given various alterations, as of speed, or metre or omission of certain notes.) The most versatile craftsman of the Renaissance was Josquin, whose music displays a continual variety of contrapuntal ingenuities, including melodic imitation. His use of successive imitation in several voices, as in his Missa da pacem based on the chant melody “Da pacem” (“give peace”), is coupled with melodic smoothness and rhythmic vitality.

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