This article examines empirically and systematically whether a string quartet (SQ) ensemble is perceived as a self-managed team (SMT). SMTs, which were initially employed in the industrial world, are groups of employees that have a total responsibility for a defined project. The hypothesis that the SQ would exhibit more typical SMT characteristics than other music ensembles was established in one experiment and reconfirmed in a second experiment. The assessment of the SMT characteristics in these experiments was based on an adaptation of the Self-Managing Work Team Effectiveness questionnaire that had been originally devised for working groups in the business context, and was proven in the present study to be appropriate for music ensembles as well. Possible ways to implement these interdisciplinary findings are suggested.The string quartet (SQ) has been grabbing the attention of musicians and theoreticians for the past two centuries, not only for being an outstanding musical ensemble but also because of its unique organizational characteristics. Menuhin's (1996) words serve as an example for this view:The quality of listening, the quality of 'teamwork', of adjusting to one another, of recognizing the main voice wherever it may be, of reconciling the different accents and inflections, and purity of intonation, is unequalled by any other ensemble except perhaps human voices themselves. (p. 248) The SQ has become the chamber ensemble par excellence of western art music (Brinner, 1995) and much attention has been given to the ways in which the members of this ensemble succeed in producing such outstanding products. Musically speaking, there is a complex interplay between the individual roles of the players and their collective role as a group. On the one hand, each SQ player preserves his or her identity while playing (Baron, 1998) but, on the other hand,