Rolf Rainer Gehlhaar (born 30 December 1943 in Breslau, died 7 July 2019), was an American composer, Professor in Experimental Music at Coventry University and researcher in assistive technology for music.
Gehlhaar was the son of a German rocket scientist, who emigrated to the United States in 1953 to work at a rocket-development research centre in New Mexico.Although he took an interest in music from the age of eight or younger, in the post-war years the family could not afford for him to learn an instrument, and so Rolf only began to play the piano at the age of fifteen, and at about the same time began to compose for fun. He took American citizenship in 1958 and studied at Yale University and the University of California, Berkeley. Initially, he had studied medicine, but soon changed his major to philosophy and the philosophy of science; then at Yale he attended a course in composition, which was an arousing experience. He moved to Cologne, Germany in 1967 to become assistant to Karlheinz Stockhausen, and became a member of his performing ensemble. In 1969, together with Johannes Fritsch and David C. Johnson, he founded the Feedback Studio, Cologne, a new-music performance center and publishing house. He later moved to England, where he became in 1979 a founding member of the Electro-Acoustic Music Association of Great Britain. In 2002 he Became Senior Lecturer in Design and Digital Media at Coventry University; at the time of his death he was Professor in Experimental Music at Coventry University, School of Art & Design. He also was a founding member of the British Paraorchestra and its technical director.
His works are for both acoustic and electro-acoustic media, though he is best known for his work with computer-controlled composition, and for his interactive installations such as Sound=Space (1985), HeadSpace (2000), CaDaReMi (2006), Walking on Earth (2007), and has for many years collaborated with Luis Miguel Girao of Artshare, Aveiro, Portugal.
He died in London on 7 July 2019.
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".
Flute repertoire is the general term for pieces composed for flute. The following lists are not intended to be complete, but rather to present a representative sampling of the most commonly played and well-known works in the genre. The lists also do not generally include works originally written for other instruments and subsequently transcribed, adapted, or arranged for flute, unless such piece is very common in the repertory, in which case it is listed with its original instrumentation noted.
David C. Johnson is an American composer, flautist, and performer of live-electronic music.
Aus den sieben Tagen is a collection of 15 text compositions by Karlheinz Stockhausen, composed in May 1968, in reaction to a personal crisis, and characterized as "Intuitive music"—music produced primarily from the intuition rather than the intellect of the performer(s). It is Work Number 26 in the composer's catalog of works.
Emmanuel Nunes was a Portuguese composer who lived and worked in Paris from 1964.
Jorge Manuel Marques Peixinho Rosado was a Portuguese composer, pianist and conductor.
Gérard Masson is a French composer.
York Höller is a German composer and Professor of composition at the Hochschule für Musik Köln.
Hymnen is an electronic and concrete work, with optional live performers, by Karlheinz Stockhausen, composed in 1966–67, and elaborated in 1969. In the composer's catalog of works, it is Nr. 22.
John McGuire is an American composer, pianist, organist, and music editor.
The trumpet repertoire consists of solo literature and orchestral or, more commonly, band parts written for the trumpet. Tracings its origins to 1500 BC, the trumpet is a musical instrument with the highest register in the brass family.
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.
Kurzwellen, for six players with shortwave radio receivers and live electronics, is a composition by Karlheinz Stockhausen, written in 1968. It is Number 25 in the catalog of the composer’s works.
Fresco is an orchestral composition written in 1969 by the German composer Karlheinz Stockhausen as foyer music for an evening-long retrospective programme of his music presented simultaneously in three auditoriums of the Beethovenhalle in Bonn. It is Nr. 29 in his catalogue of works, and a performance takes about five hours.
Prozession (Procession), for tamtam, viola, electronium, piano, microphones, filters, and potentiometers, is a composition by Karlheinz Stockhausen, written in 1967. It is Number 23 in the catalogue of the composer’s works.
Rui Penha (Porto, October 16, 1981 - Porto, is a Portuguese musician, composer, and conductor.
Thomas Wells is an American composer, pianist, organist, and arts-organization administrator.
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.
Mixed music is music combining acoustic instruments and fixed-media electronics or more generally, music which combines acoustic-instrumental and electronic sounds sources ; mixed music is therefore a subcategory of electronic music. While this term could be applied to many genres, the term mixed music generally refers to contemporary classical music repertoire and is therefore distinct from live electronic music.
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.