Hans-Joachim Koellreutter

{{short description|Brazilian composer, teacher and musicologist}}

{{Infobox person

| name = Hans-Joachim Koellreutter

| image = Hans-joachim Koellreutter 2.tif

| alt =

| caption = Hans-Joachim Koellreutter
National Archives of Brazil

| birth_name =

| birth_date = {{Birth date|1915|09|02|df=y}}

| birth_place = Freiburg, Germany

| death_date = {{Death date and age|2005|09|13|1915|09|02|df=y}}

| death_place = São Paulo, Brazil

| nationality = Brazilian

| other_names =

| occupation = composer, teacher and musicologist

| years_active =

| known_for = brought the theory of atonal music to Brazil

| notable_works = created the group Musica Viva

}}

Hans-Joachim Koellreutter (2 September 1915 – 13 September 2005) was a Brazilian composer, teacher and musicologist.

Koellreutter was born in Freiburg, Germany and lived in Brazil from 1937 onward, where he became one of the country's most influential musicians.{{cite journal|last=Tourinho|first=Irene|date=1999|title=Encontros com Koellreutter: Sobre suas histórias e seus mundos|journal=Estudos Avançados|language=pt|volume=13|issue=36|pages=209–223|doi=10.1590/S0103-40141999000200011|doi-access=free}}

In Brazil Koellreuter taught many prominent composers, including Gilberto Mendes, Cláudio Santoro, Antônio Carlos Jobim, Denis Mandarino, Jayme Amatnecks, among others.{{cite web|title=Série "Música de Câmara na ABL" homenageia os 100 anos de nascimento do professor e compositor Hans Joachim Koellreutter|url=http://www.academia.org.br/noticias/serie-musica-de-camara-na-abl-homenageia-os-100-anos-de-nascimento-do-professor-e|url-status=dead|access-date=3 June 2016|website=Academia Brasileira de Letras|language=pt|archive-date=3 March 2016|archive-url=https://web.archive.org/web/20160303171148/http://www.academia.org.br/noticias/serie-musica-de-camara-na-abl-homenageia-os-100-anos-de-nascimento-do-professor-e}}

He brought the theory of atonal music to Brazil, creating the group "Musica Viva" and inflating the debate between the "Nationalists" and "Serialists".{{Cite web|title=Koellreutter|url=http://musicosdobrasil.com.br/koellreutter|url-status=dead|archive-url=https://web.archive.org/web/20120204082816/http://musicosdobrasil.com.br/koellreutter|archive-date=4 February 2012|access-date=6 June 2012|website=Músicos do Brasil|language=pt}}

While the former group believed in the use of folklore material for the development of their compositions, the latter believed that the more rational approach of the European school was the path to truly contemporary works. This debate played a central role in the esthetic developments of Brazilian classical music throughout the 20th century.A Musica Classica Brasileira Hoje, Editora Folha de Sao Paulo, 2007.{{cite web|last=Neder|first=Hermelino|date=19 September 2005|title=Koellreutter ressuscita, um dias após a morte, no Festival Cultura|url=http://www1.folha.uol.com.br/folha/colunas/diariodepressaoefama/ult2855u24.shtml|access-date=5 June 2012|website=Folha Online|language=pt}}