This study investigates how teachers of the subject ensemble in Swedish upper secondary school talk about their choices of subject content in light of their background as musicians and/or music teachers? According to current regulations and curricula (Läroplan för de frivilliga skolformerna, Lpf 94; Programmål för Estetiska programmet, ES 2000:05) the Swedish upper secondary school system can be described as goal-centered, which implies that the goals of the education are in focus and that methods and material to achieve those goals can show great variances. The aim of this study is to investigate how music teacher talk about their choices of content in relation to several background factors like music teacher education and experience and their experience as professional performers. Research questions are: * How do musicteachers talk in groupinterviews regarding choices of content in ensemble in upper secondary school? * What do musicteachers perceive as essential contents in music teaching in the subject ensemble? The conceptual framework in this study is inspired by Berger and Luckmann’s (1966/1979) theories of the construction of reality. This means that a non-essentialist approach is taken and that subject matter, content and curricula all are understood as constructs in relation to a context, historically and cultural specific (Burr, 2003). This explains the focus on the interviewees professional backgrounds in relation to choice of content. Furthermore it relies on discourse psychology (Potter & Wetherell, 1987) where interpretative repertoires is used as an analytical tool. By focus group-interviews (Wibeck, 2000; Morgan, 1998) data has been collected and then analyzed. The interviewees are both professional musicians and music teachers, and they are all working as music teachers in upper secondary schools. The results of the study indicates that the teachers’ talk about choices of content is constructed mainly through their experiences of performing and professional musicianship and that didactical constructions highly relies on those experiences. This means that music as a subject (cf. Nielsen, 1998) is often seen as a product, as in a concert or a recording, and that the music teachers’ professional experiences of making music is an important ground for accomplishing that task. This raises further questions about how music teaching should be carried out and what implications the focus on a product has on musical learning from a democratic as well as a pedagogical perspective.