1 Group Entremeios: Collective Creativity and Technology Rogério Costa, University of São Paulo, rogercos@usp.br Felipe Merker Castellani, Universidade Anhembi Morumbi, felipemerkercastellani@yahoo.com.br Alessandra Bochio, Universidade Anhembi Morumbi, ale.bochio@yahoo.com.br Alexandre Zamith Almeida, University of Campinas, alex.za.al@gmail.com Brazil Introduction This article refers to the creative work of the group Entremeios comprising of Alessandra Bochio, Alexandre Zamith, Felipe M. Castellani and Rogério Costa. The artistic proposals developed by Entremeios are the result of collective and collaborative processes in which the traditional separation of roles, such as composer and performer, are diluted. In this context, we aim to build creation environments (including both composition and improvisation) in which are established dynamically and fluently, a series of interferences and mutual interactions between acoustic and electronic instruments, between sounds and images, and between the actions of artists. To think the configuration and operation of these environments, we will use the concepts of dispositif from Foucault and refrain from Deleuze and Guattari. These concepts will be explained and applied to our specific theme throughout the article. The poetic project of group Entremeios First we must emphasize that the poetic project of the group is based on the idea of collective creativity in which there is no concern about authorship. Therefore, all are, at the same time, performers and creators. In addition, all assume the role of luthier to the extent that everybody eventually builds, reworks or reconstructs their instruments. This is due to another important feature of the poetics of the group: the experimental attitude that also includes the use of traditional or extended techniques, and even the invention of new techniques suitable to unique performances. To optimize the flow of collective creativity, the group prepares the environment as a network of interactions that allows convergence of elements, often seemingly heterogeneous. In this type of environment, the emphasis is on the creation and performance process and therefore each presentation of the same "play" results in something different. The preparation of such interactive game environments may incorporate the composition of a script or a pre-established macro formal structure. The emphasis in the process in the moment of the performance is related to the idea of improvisation and supposes readiness to make decisions and solve problems that occur in real time. To facilitate this kind of attitude, it is necessary an intensification of presence that depends on concentration,