ESMERIL - An interactive audio player and composition system for collaborative experimental music netlabels

ESMERIL is an application developed for Android with a toolchain based on Puredata and OpenFrameworks (with Ofelia library). The application enables music creation in a specific expanded format: four separate mono tracks, each one able to manipulate up to eight audio samples per channel. It works also as a performance instrument that stimulates collaborative remixings from compositions of scored interaction gestures called "scenes". The interface also aims to be a platform to exchange those sample packs as artistic releases, a format similar to the popular idea of an "album", but prepared to those four channel packs of samples and scores of interaction. It uses an adaptive audio slicing mechanism and it is based on interaction design for multi-touch screen features. A timing sequencer enhances the interaction between pre-set sequences (the "scenes") and screen manipulation scratching, expanding and moving graphic sound waves. This paper describes the graphical interface features, some development decisions up to now and perspectives to its continuity.