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Key patterns are generated through cross-rhythm. [13] They typically consist of 12 or 16 pulses, and have a bipartite structure, which evenly divides the pattern into two rhythmically opposed cells of 6 or 8 pulses each. [14] The key pattern defines the musical period; the first cell is antecedent, and the second is consequent.
Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...
Baroque opera arias and a considerable number of baroque sacred music arias was dominated by the Da capo aria which were in the ABA form. A frequent model of the form began with a long A section in a major key, a short B section in a relative minor key mildly developing the thematic material of the A section and then a repetition of the A section. [4]
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]
The so-called "bossa nova clave" (or "Brazilian clave") has a similar rhythm to that of the son clave, but the second note on the two-side is delayed by one pulse (subdivision). The rhythm is typically played as a snare rim pattern in bossa nova music. The pattern is shown below in 2 4, as it is written in Brazil. In North American charts it is ...
In music theory, the key of a piece is the group of pitches, or scale, that forms the basis of a musical composition in Western classical music, art music, and pop music. Tonality (from "Tonic") or key: Music which uses the notes of a particular scale is said to be "in the key of" that scale or in the tonality of that scale.
Key pattern is the generic term for an interlocking geometric motif made from straight lines or bars that intersect to form rectilinear spiral shapes. [ 1 ] [ 2 ] [ 3 ] According to Allen and Anderson, the negative space between the lines or bars of a key pattern “resemb[es] the L- or T-shaped slots in an ordinary key to allow it to pass the ...
Note that in most Cuban and Cuban-based popular music, such as salsa, the two halves of the pattern are reversed: the two-side is the precedent, the three-side the consequent. Please see the article on clave for a fuller explanation. An actual key pattern does not need to be played in order for a key pattern to define the period.