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A composite rhythm is the durations and patterns (rhythm) produced by amalgamating all sounding parts of a musical texture. In music of the common practice period , the composite rhythm usually confirms the meter , often in metric or even-note patterns identical to the pulse on a specific metric level.
The most commonly used key pattern in sub-Saharan Africa is the seven-stroke figure known in ethnomusicology as the standard pattern. [19] [20] [21] The standard pattern, composed of two cross-rhythmic fragments, is found both in simple (4 4 or 2 2) and compound (12 8 or 6 8) metrical structures. [22]
Polyrhythm: Triplets over duplets in all four beats [1] 2:3 polyrhythm (cross rhythm) as bounce inside oval Polyrhythm (/ ˈ p ɒ l i r ɪ ð əm /) is the simultaneous use of two or more rhythms that are not readily perceived as deriving from one another, or as simple manifestations of the same meter. [2]
Traditional sub-Saharan African harmony is a music theory of harmony in sub-Saharan African music based on the principles of homophonic parallelism (chords based around a leading melody that follow its rhythm and contour), homophonic polyphony (independent parts moving together), counter-melody (secondary melody) and ostinato-variation (variations based on a repeated theme).
Music theory analyzes the pitch, timing, and structure of music. It uses mathematics to study elements of music such as tempo, chord progression, form, and meter. The attempt to structure and communicate new ways of composing and hearing music has led to musical applications of set theory, abstract algebra and number theory.
Pérotin, "Alleluia nativitas", in the third rhythmic mode. In medieval music, the rhythmic modes were set patterns of long and short durations (or rhythms).The value of each note is not determined by the form of the written note (as is the case with more recent European musical notation), but rather by its position within a group of notes written as a single figure called a ligature, and by ...
Pattern 4 is a bell pattern used by the Hausa people of Nigeria. [28] It is also used in the Cuban-Congolese rhythm palo. The figure is sometimes referred to as a horizontal hemiola. [29] Three-beat cycle bell patterns. There is a category of 12 8 bell patterns based on "slow" cycles of three cross-beats across four or eight main beats.
The Oxford Companion to Music describes three interrelated uses of the term "music theory": The first is the "rudiments", that are needed to understand music notation (key signatures, time signatures, and rhythmic notation); the second is learning scholars' views on music from antiquity to the present; the third is a sub-topic of musicology ...