This paper elaborates on and advances a proposition for framing collaborative music making as an assemblage of remediated practices. To this effect, we draw upon theories of agency and artifacts to anchor the concept of remediated practices. Then, by blending concepts from the Computer-Supported Cooperative Work (CSCW), Human Computer Interaction (HCI) and Management Science scholarships, we establish the baseline for remediating music performance using new digital media. The above are demonstrated using a prototypical platform which enables online music ensembles to negotiate music making using computer-mediated boundary artifacts and generic cloud services.