Andreas Pflüger was born as the son of the artist painter Carl Pflüger-Gotstein in Basle, Switzerland. He attended the Rudolf Steiner School, the Gymnasium for Mathematics and Natural Sciences and the Music Academy in Basle, where he obtained his diploma majoring in composition and minoring in double bass in 1965. In 1965–1966 he won a stipend enabling him to study at the Gulbenkian Foundation in Lisbon.
In 1966–1968 he was an associate of the conductor and composer Igor Markevitch in Madrid and attended the composition seminars of Prof. Luis de Pablo at the Universidad Complutense de Madrid on “Contemporary Music in the Audiovisual Media” (La música contemporánea en los medios audiovisuales).
During the 1970s he participated a number of times at the International Summer Courses for New Music in Darmstadt. He worked on various projects there, some of these in cooperation with Karlheinz Stockhausen, Mauricio Kagel, Iannis Xenakis, Rolf Gehlhar and Siegfried Palm, with whom he cultivated a friendship until the latter’s death. He also completed post-graduate studies with Prof. Rudolf Kelterborn in Basle during the 1970s.
In 1982 Andreas Pflüger received the Prix Suisse for the opera La Strega Orsina che non muore mai based on a libretto by Grytzko Mascioni.
In 1998 he was a guest of the Soviet Cultural Ministry on the occasion of the world premiere of his ballet Catharsis at the Lithuanian State Opera in Vilnius.
In 1990 he was an authority at the International Music Competition in Geneva and in 1993 at the International Music Competition in Markneukirchen.
In 1997 he was invited to undertake a lecture tour at universities in the USA (UC Berkeley, Dallas, Charleston S.C., NYC, Washington DC and Chicago). The subject was “Strolling through 200 years of Swiss Music”.
In 1989 there followed a lecture tour at universities and cultural institutions in Argentina and Paraguay (Universidad de Belgrano & Universidad Cattólica de Buenos Aires, Universidad de Rosario, Universidad Nacional de Córdoba, Escuelas superiores de Corrientes, Private Audiences in Bahia Blanca and at the Goethe Institute of Asunciòn / Paraguay) with the subject “Paseo por 200 años de música Suiza”.
In 2007 he undertook a tour in Japan (Tokyo and Naha).
Andreas Pflüger has composed seven operas (Prague State Opera, Silesian National Theatre in Opava, Basle, Geneva/TV production, Kislovodsk/Russia), two ballets (Agora: TV production, Catharsis: Lithuanian State Opera in Vilnius) as well as numerous symphonic and chamber works which have taken him to countries including to Germany, France, Italy, Luxemburg, Sweden, Spain, Argentina, Lithuania, USA, Russia, Ukraine and Israel. He has composed approximately 120 film scores for various producers, including for a well-known cartoon series.