Jean-Yves Bosseur (born in Paris, 5 February 1947) is a French composer and writer.
Bosseur studied composition with Henri Pousseur and Karlheinz Stockhausen at the Third, Fourth, and Fifth Cologne Courses for New Music, from 1965 to 1968, at the Hochschule für Musik Köln, [1] and received a doctorate in aesthetic philosophy from the University of Paris. He has composed more than 200 works and is most noteworthy for his stage works and chamber music.
Kontra-Punkte is a composition for ten instruments by Karlheinz Stockhausen which resolves contrasts among six instrumental timbres, as well as extremes of note values and dynamic levels, into a homogeneous ending texture. Stockhausen described it: "Counter-Points: a series of the most concealed and also the most conspicuous transformations and renewals—with no predictable end. The same thing is never heard twice. Yet there is a distinct feeling of never falling out of an unmistakable construction of the utmost homogeneity. An underlying force that holds things together—related proportions: a structure. Not the same Gestalten in a changing light. But rather this: various Gestalten in the same light, that permeates everything."
Formula composition is a serially derived technique encountered principally in the music of Karlheinz Stockhausen, involving the projection, expansion, and Ausmultiplikation of either a single melody-formula, or a two- or three-voice contrapuntal construction.
Momente (Moments) is a work by the German composer Karlheinz Stockhausen, written between 1962 and 1969, scored for solo soprano, four mixed choirs, and thirteen instrumentalists. A "cantata with radiophonic and theatrical overtones", it is described by the composer as "practically an opera of Mother Earth surrounded by her chicks". It was Stockhausen's first piece composed on principles of modular transposability, and his first musical form to be determined from categories of sensation or perception rather than by numerical units of musical terminology, which marks a significant change in the composer's musical approach from the abstract forms of the 1950s.
Gruppen for three orchestras (1955–57) is amongst the best-known compositions of German composer Karlheinz Stockhausen, and is Work Number 6 in the composer's catalog of works. Gruppen is "a landmark in 20th-century music ... probably the first work of the post-war generation of composers in which technique and imagination combine on the highest level to produce an undisputable masterpiece".
Collegium Vocale Köln is a German vocal ensemble, founded in 1966 as a quintet when its members were still students at the Rheinische Musikschule in Cologne. It is directed by Wolfgang Fromme, who also sings tenor in the ensemble. They are best known as the group for which Karlheinz Stockhausen composed Stimmung in 1968, a work which they had performed more than three hundred of times throughout the world by 1986. The original impetus for the ensemble's founding, however, was an appearance by Alfred Deller at the Cologne Courses for Early Music, and the group has always performed both early and contemporary works.
Kontakte is an electronic music work by Karlheinz Stockhausen, realized in 1958–60 at the Westdeutscher Rundfunk (WDR) electronic-music studio in Cologne with the assistance of Gottfried Michael Koenig. The score is Nr. 12 in the composer's catalogue of works, and is dedicated to Otto Tomek.
Mesías Maiguashca is an Ecuadorian composer and an advocate of Neue Musik, especially electroacoustic music.
Intuitive music is a form of musical improvisation based on instant creation in which fixed principles or rules may or may not have been given. It is a type of process music where instead of a traditional music score, verbal or graphic instructions and ideas are provided to the performers. The concept was introduced in 1968 by the German composer Karlheinz Stockhausen, with specific reference to the collections of text-notated compositions Aus den sieben Tagen (1968) and Für kommende Zeiten (1968–70). The first public performance of intuitive-music text compositions, however, was in the collective work Musik für ein Haus, developed in Stockhausen's 1968 Darmstadt lectures and performed on 1 September 1968, several months before the first realisations of any of the pieces from Aus den sieben Tagen.
In Freundschaft is a composition by Karlheinz Stockhausen, number 46 in his catalogue of works. It is a serial composition for a solo instrument, first for clarinet, and later arranged by the composer for many other instruments, often in friendship to specific performers.
Carré (Square) for four orchestras and four choirs (1959–60) is a composition by the German composer Karlheinz Stockhausen, and is Work Number 10 in the composer's catalog of works.
Zeitmaße is a chamber-music work for five woodwinds composed in 1955–1956 by German composer Karlheinz Stockhausen; it is Number 5 in the composer's catalog. It is the first of three wind quintets written by Stockhausen, followed by Adieu für Wolfgang Sebastian Meyer (1966) and the Rotary Wind Quintet (1997), but is scored with cor anglais instead of the usual French horn of the standard quintet. Its title refers to the different ways that musical time is treated in the composition.
Mixtur, for orchestra, 4 sine-wave generators, and 4 ring modulators, is an orchestral composition by the German composer Karlheinz Stockhausen, written in 1964, and is Nr. 16 in his catalogue of works. It exists in three versions: the original version for full orchestra, a reduced scoring made in 1967, and a re-notated version of the reduced scoring, made in 2003 and titled Mixtur 2003, Nr. 162⁄3.
Studie I is an electronic music composition by Karlheinz Stockhausen from the year 1953. It lasts 9 minutes 42 seconds and, together with his Studie II, comprises his work number ("opus") 3.
Pole (Poles), for two performers with shortwave radio receivers and a sound projectionist, is a composition by Karlheinz Stockhausen, written in 1970. It is Number 30 in the catalogue of the composer's works.
Stop is a composition for orchestra by Karlheinz Stockhausen, work-number 18 in the composer’s catalogue of works, where two performing realisations are also found as Nr. 18½ and Nr. 18⅔.
Expo, for three performers with shortwave radio receivers and a sound projectionist, is a composition by Karlheinz Stockhausen, written in 1969–70. It is Number 31 in the catalogue of the composer's works.
Drei Lieder, for alto voice and chamber orchestra, is a song cycle by Karlheinz Stockhausen, written while he was still a conservatory student in 1950. In the composer's catalogue of works, it bears the number 1/10.
The Studio for Electronic Music of the West German Radio was a facility of the Westdeutscher Rundfunk (WDR) in Cologne. It was the first of its kind in the world, and its history reflects the development of electronic music in the second half of the twentieth century.
Ensemble is a group-composition project devised by Karlheinz Stockhausen for the 1967 Darmstädter Ferienkurse. Twelve composers and twelve instrumentalists participated, and the resulting performance lasted four hours. It is not assigned a work number in Stockhausen's catalogue of works.
Musik für ein Haus is a group-composition project devised by Karlheinz Stockhausen for the 1968 Darmstädter Ferienkurse. Fourteen composers and twelve instrumentalists participated, with the resulting performance lasting four hours. It was not regarded by Stockhausen as a composition belonging solely to himself, and therefore was not assigned a number in his catalog of works.