1 Introduction; Abstract; Think Know Reflect; 2 Instrumentality. On the Construction of Instrumental Identity; Abstract; 1 Introduction; 2 Musical Instruments versus Other Things; 3 Musical Instruments and Musical Instrument Concepts; 4 Previous Approaches to Instrumentality; 5 Criteria of Instrumentality: A Preliminary Inventory; 6 Conclusion; References; 3 From Musical Instruments as Ontological Entities to Instrumental Quality: A Linguistic Exploration of Musical Instrumentality in the Digital Era; Abstract; 1 Introduction

2 A Linguistic and Cognitive Perspective on Musical Instrumentality2.1 A Multidisciplinary Framework…; 2.2 … for a Heterogeneous Corpus; 3 From Lexicographic and Academic Instrument Definitions…; 3.1 Lexicographic Definitions; 3.2 (Ethno-) Musicology Definitions; 4 … to the Emergence of a Terminology in a Computer Music Community of Practices; 4.1 Strategies for Naming and Categorising Digital Devices in Users' Interviews; 4.2 Defining Instrumentality; 5 Naming Strategies in Computer Music Literature Titles: A Stabilisation Under Construction; 6 Concluding Remarks and Perspectives

AcknowledgmentsReferences; 4 From Idiophone to Touchpad. The Technological Development to the Virtual Musical Instrument; Abstract; 1 Introduction; 2 The Development of Musical Instruments in Ten Stages from Prehistory to the Digital Age; 3 New Forms of Composing and Playing in a Digital World of Music; References; 5 Musical Instruments as Assemblage; Abstract; 1 Introduction: From Musical Instrument to Assemblage; 2 Violins and Fiddles: Identical Instruments, Diverse Assemblages; 3 The Electric Guitar: Technological Assemblage as 'Integrated Circuit'

4 The Turntable: An Assemblage en Route to a Musical Instrument5 Conclusion: Instrument Design and Assemblage; References; 6 Instrumentality as Distributed, Interpersonal, and Self-Agential: Aesthetic Implications of an Instrumental Assemblage and Its Fortuitous Voice; Abstract; 1 Introduction; 2 Exploring the Instrumentality of an Installatory Assemblage; 3 Distribution, Natural Environment, Interpersonal Accomplishment: Three Extensions to Alperson's Concept of Instrumentality; References

7 Interactivity of Digital Musical Instruments: Implications of Classifying Musical Instruments on Basic Music ResearchAbstract; 1 The Hornbostel-Sachs System and Musical Instrument Classification; 2 Scientific Concept Formation: Classification and Taxonomy; 2.1 Classification and Taxonomy I: The Logical Concept; 2.2 Classification and Taxonomy II: The Problem of Empirical Adequacy; 3 The 'Computer-as-a-Musical Instrument', Interactivity and Automata: A Necessity of a New Approach to Musical Instrument Classification?