Consonance and dissonance

In music, consonance and dissonance form a structural dichotomy in which the terms define each other by mutual exclusion: a consonance is what is not dissonant, and reciprocally. However, a finer consideration shows that the distinction forms a gradation, from the most consonant to the most dissonant. Consonance and dissonance define a level of sweetness / harshness, pleasantness / unpleasantness, acceptability / unacceptability, of the sounds or intervals under consideration. As Hindemith stressed, "The two concepts have never been completely explained, and for a thousand years the definitions have varied" (Hindemith 1942, p. 85).

The opposition can be made in different contexts:

Reality

Reality is the state of things as they actually exist, rather than as they may appear or might be imagined. In a wider definition, reality includes everything that is and has been, whether or not it is observable or comprehensible. A still broader definition includes everything that has existed, exists, or will exist.

Philosophers, mathematicians, and other ancient and modern thinkers, such as Aristotle, Plato, Frege, Wittgenstein, and Russell, have made a distinction between thought corresponding to reality, coherent abstractions (thoughts of things that are imaginable but not real), and that which cannot even be rationally thought. By contrast existence is often restricted solely to that which has physical existence or has a direct basis in it in the way that thoughts do in the brain.

Reality is often contrasted with what is imaginary, delusional, (only) in the mind, dreams, what is false, what is fictional, or what is abstract. At the same time, what is abstract plays a role both in everyday life and in academic research. For instance, causality, virtue, life and distributive justice are abstract concepts that can be difficult to define, but they are only rarely equated with pure delusions. Both the existence and reality of abstractions are in dispute: one extreme position regards them as mere words; another position regards them as higher truths than less abstract concepts. This disagreement is the basis of the philosophical problem of universals.

Reality (Monk Montgomery album)

Reality is a 1974 album by jazz bassist Monk Montgomery, one of his four solo albums. It was released on Philadelphia International Records.

Track listing

Personnel

References

Reality (2014 film)

Reality (French: Réalité) is a 2014 French-Belgian comedy-drama film written and directed by Quentin Dupieux. The film premiered in the Horizons section at the 71st Venice International Film Festival on 28 August 2014.

Cast

References

External links

Structure

Structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as biological organisms, minerals and chemicals. Abstract structures include data structures in computer science and musical form. Types of structure include a hierarchy (a cascade of one-to-many relationships), a network featuring many-to-many links, or a lattice featuring connections between components that are neighbors in space.

Load-bearing

Buildings, aircraft, skeletons, anthills, beaver dams and salt domes are all examples of load-bearing structures. The results of construction are divided into buildings and non-building structures, and make up the infrastructure of a human society. Built structures are broadly divided by their varying design approaches and standards, into categories including building structures, architectural structures, civil engineering structures and mechanical structures.

Structures (Boulez)

Structures I (1952) and Structures II (1961) are two related works for two pianos, composed by the French composer Pierre Boulez.

History

The first book of Structures was begun in early 1951, as Boulez was completing his orchestral work Polyphonie X, and finished in 1952. It consists of three movements, or "chapters", labelled Ia, Ib, and Ic, composed in the order a, c, b. The first of the second book's two "chapters" was composed in 1956, but chapter 2 was not written until 1961. The second chapter includes three sets of variable elements, which are to be arranged to make a performing version (Häusler 1965, 5). A partial premiere of book 2 was performed by the composer and Yvonne Loriod at the Wigmore Hall, London, in March 1957. This was Boulez's first appearance in the UK as a performer (Griffiths 1973). The same performers gave the premiere of the complete second book, with two different versions of chapter 2, in a chamber-music concert of the Donaueschinger Musiktage on Saturday, 21 October 1961 (Südwestrundfunk n.d.).

Structure (disambiguation)

The structure of a thing is how the parts of it relate to each other, how it is "assembled".

Structure may also refer to:

In architecture:

In engineering:

In art:

In biology:

In chemistry: