Abstract. The Internet Archive for Electronic Music (IAEM) is intended to be a platform to access an extensive and distributed archive of electronic music. It combines collaborative tools, real time signal processing on the client side and the content of the archive with the concept of learning sequences to a powerful teaching, research and publishing tool. The internet Audio Rendering System (iARS) refers to a client browser extension which is part of the IAEM system. It extends a webbrowser with a flexible real time audio processing capability supporting multi-channel processing. This enables users of the system to perceive multi-track recordings in their correct acoustical context. Through its built in user interface iARS is capable of presenting mixing devices and graphical scenes creating interactive virtual environments. These environments may be used embedded in learning sequences in teaching or for experimenting with new music algorithms.