Choir singing is becoming increasingly important as a meeting point for cultural practices and for transcending national and cultural boundaries. This introductory chapter discusses the collective choral voice as both a musical and a societal phenomenon. As such, it is a complex field of research that motivates a multitude of theoretical and methodological approaches in different disciplines. Studies of choral music-making may be divided into perspectives that focus upon, respectively, the context, the process, and the artistic products of choral music-making. The network Choir in Focus aims at being a platform for such interdisciplinary investigations and interactions between practice-based, pedagogical, and historical approaches. Contemporary trends are presented and suggestions for future research topics are given. In conclusion, choral research is seen as a field of possibilities for creating new knowledge and new opportunities for interaction between researchers and practitioners.