This article is a development, refinement and expansion of a paper presented at the Electroacoustic Music Studies Conference, 2007 (EMS07). It aims to provide a framework and terminology for the discussion, analysis and creation of music that articulates mimetic discourse and structure. In doing so, it also intends to enable parallel and complementary analytical approaches to those concerned with the aural and spatial aspects of musical articulation. It proposes the notion of multidimensional mimetic space, taking as its point of departure Emmerson's Language Grid (Emmerson 1986), and constructing additional axes representing compositional continua, similar in function to those proposed by spectromorphology (Smalley 1986), but applicable to mimetic material. The argument considers the mimetic implications of both purely acousmatic music and works that combine the acousmatic with live performance. After a brief consideration of the relationship between mimetic space and space-form (Smalley 2007a), the discussion concludes with a perspective on narrative as a component of mimetic space; providing an extensive discussion of issues pertinent to the idea of signifier space, which was originally introduced in the preceding paper.