Answer the question at the end by quoting:

David Emile Durkheim (French: [emil dyRkem] or [dyRkajm]; April 15, 1858 - November 15, 1917) was a French sociologist. He formally established the academic discipline and--with Karl Marx and Max Weber--is commonly cited as the principal architect of modern social science. Much of Durkheim's work was concerned with how societies could maintain their integrity and coherence in modernity; an era in which traditional social and religious ties are no longer assumed, and in which new social institutions have come into being. His first major sociological work was The Division of Labour in Society (1893).
A social fact is every way of acting, fixed or not, capable of exercising on the individual an external constraint; or again, every way of acting which is general throughout a given society, while at the same time existing in its own right independent of its individual manifestations.  Durkheim's work revolved around the study of social facts, a term he coined to describe phenomena that have an existence in and of themselves, are not bound to the actions of individuals, but have a coercive influence upon them. Durkheim argued that social facts have, sui generis, an independent existence greater and more objective than the actions of the individuals that compose society. Only such social facts can explain the observed social phenomena. Being exterior to the individual person, social facts may thus also exercise coercive power on the various people composing society, as it can sometimes be observed in the case of formal laws and regulations, but also in situations implying the presence of informal rules, such as religious rituals or family norms. Unlike the facts studied in natural sciences, a "social" fact thus refers to a specific category of phenomena:  The determining cause of a social fact must be sought among the antecedent social facts and not among the states of the individual consciousness.  Such social facts are endowed with a power of coercion, by reason of which they may control individual behaviors. According to Durkheim, these phenomena cannot be reduced to biological or psychological grounds. Social facts can be material (physical objects) or immaterial (meanings, sentiments, etc.). The latter cannot be seen or touched, but they are external and coercive, and as such, they become real, gain "facticity". Physical objects can represent both material and immaterial social facts; for example a flag is a physical social fact that often has various immaterial social facts (the meaning and importance of the flag) attached to it.  Many social facts, however, have no material form. Even the most "individualistic" or "subjective" phenomena, such as love, freedom or suicide, would be regarded by Durkheim as objective social facts. Individuals composing society do not directly cause suicide: suicide, as a social fact, exists independently in society, and is caused by other social facts (such as rules governing behavior and group attachment), whether an individual likes it or not. Whether a person "leaves" a society does not alter the fact that this society will still contain suicides. Suicide, like other immaterial social facts, exists independently of the will of an individual, cannot be eliminated, and is as influential - coercive - as physical laws such as gravity. Sociology's task thus consists of discovering the qualities and characteristics of such social facts, which can be discovered through a quantitative or experimental approach (Durkheim extensively relied on statistics).

What is Durkheim's definition of social fact?

a term he coined to describe phenomena that have an existence in and of themselves, are not bound to the actions of individuals, but have a coercive influence upon them.



Answer the question at the end by quoting:

Gyorgy Sandor Ligeti (; Hungarian: Ligeti Gyorgy Sandor, pronounced ['ligeti 'jorj 'Sa:ndor]; 28 May 1923 - 12 June 2006) was a Hungarian-Austrian composer of contemporary classical music. He has been described as "one of the most important avant-garde composers in the latter half of the twentieth century" and "one of the most innovative and influential among progressive figures of his time". Born in Transylvania, Romania, he lived in Hungary before emigrating to Austria in 1956, and became an Austrian citizen in 1968. In 1973 he became professor of composition at the Hamburg Hochschule fur Musik und Theater until he retired in 1989.
Ligeti was born in 1923 at Dicsoszentmarton (which was renamed Tarnaveni in 1941), in the Romanian region of Transylvania to Dr. Sandor Ligeti and Dr. Ilona Somogyi. His family was Hungarian Jewish. He was the grandnephew of the violinist Leopold Auer and cousin of Hungarian philosopher Agnes Heller.  Ligeti recalled that his first exposure to languages other than Hungarian came one day while listening to a conversation among the Romanian-speaking town police. Before that he had not known that other languages existed. He moved to Cluj with his family when he was six years old. He was not to return to the town of his birth until the 1990s. In 1940, Northern Transylvania was annexed by Hungary following the Second Vienna Award and Cluj became part of Hungary.  In 1941 Ligeti received his initial musical training at the conservatory in Cluj, and during the summers privately with Pal Kadosa in Budapest. In 1944, Ligeti's education was interrupted when he was sent to a forced labor brigade by the Horthy regime. His brother, age 16, was deported to the Mauthausen-Gusen concentration camp and both of his parents were sent to Auschwitz. His mother was the only other survivor of his immediate family.  Following World War II, Ligeti returned to his studies in Budapest, Hungary, graduating in 1949 from the Franz Liszt Academy of Music. He studied under Pal Kadosa, Ferenc Farkas, Zoltan Kodaly and Sandor Veress. He went on to do ethnomusicological research into the Hungarian folk music of Transylvania. However, after a year he returned to Franz Liszt Academy in Budapest, this time as a teacher of harmony, counterpoint and musical analysis, a position he secured with the help of Kodaly and held between 1950 and 1956. As a young teacher, Ligeti took the unusual step of regularly attending the lectures of an older colleague, the conductor and musicologist Lajos Bardos, a conservative Christian whose circle represented for Ligeti a safe haven, and whose help and advice he later acknowledged in the prefaces to his own two harmony textbooks (1954 and 1956). However, communications between Hungary and the West by then had become difficult due to the restrictions of the communist government, and Ligeti and other artists were effectively cut off from recent developments outside the Eastern Bloc.

What did he do in there?
forced labor