(from the Italian alea, meaning 'dice') A piece of music whose composition or performance depends on improvisation, or on chance The ad lib passages of baroque keyboard pieces are aleatory, as are those by modern composers who deliberately leave elements in an indeterminate state or compose using notes generated at random on a computer
or aleatoric music: Chance music in which the performers are free to perform their own material and/or their own manner of presentation
A type of contract The term is usually applied to insurance contracts in which payment is dependent on the occurrence of a contingent event, such as injury to the insured person in an accident or fire damage to his insured building
also referred to as indeterminacy or chance music Aleatory compositions contain at least one aspect (rhythm, pitch, dynamics, etc ) that is left up to the performer to control The composer usually presents some kind of basic guidelines but it is then up to the performer to "improvise" on these rules
A contract in which both parties realize that one party may obtain far greater value under the agreement than the other, and in which payment depends upon an unforeseen event An insurance contract is an aleatory contract in that it may or may not provide more in benefits than premiums paid
a contract whose performance by one party depends on the occurrence of an uncertain contingent event (but if it is contingent on the outcome of a wager it is not enforceable)
= A contract in which the number of dollars to be given up by each party is not equal Insurance contracts are of this type, as the policyholder pays a premium and may collect nothing from the insurer or may collect a great deal more than the amount of the premium if a loss occurs
A contract in which the number of dollars to be given up by each party is not equal Insurance contracts are of this type, as the policyholder pays a premium and may collect nothing from the insurer or may collect a great deal more than the amount of the premium if a loss occurs (G)
A contract under which one party provides something of value to another party in exchange for a conditional promise, which is a promise that the other party will perform a stated act if a specified, uncertain event occurs Insurance contracts are aleatory because the policyowner pays premiums to the insurer, and in return the insurer promises to pay benefits if the event insured against occurs
(from Latin, alea: "dice game") Any 20th-century music, particularly that of the 1950s and '60s, the composition or performance of which incorporates elements of chance. In aleatory music aspects such as the ordering of a piece's sections, its rhythms, and even its pitches are decided at the moment of performance. When not purely improvising, players follow lists of arbitrary rules or interpreted "graphic" notation that merely suggest the sounds. Charles Ives and Henry Cowell had used such techniques, but John Cage became the principal figure in aleatory; other aleatory composers include Earle Brown (1926-2002), Morton Feldman (1926-87), and Pierre Boulez