Two warnings, two comments in advance. 'Since each of us is several, there is already quite a crowd', Deleuze and Guatari write as one of their opening statements of A Thousand Plateaus (Deleuze & Guattari, p.3). And, according to Lyotard, we do not form linguistic constructions that are necessarily stable (Lyotard, p.26). So, even if there is - because of falling prostrate before convention - just one person who signed all of these pages, remember that he is already divided within himself. One name accommodates in itself many persons.
 Marcel Cobussen is Full Professor of Auditory Culture and Music Philosophy at Leiden University (the Netherlands) and the Orpheus Institute in Ghent (Belgium). He studied jazz piano at the Conservatory of Rotterdam and Art and Cultural Studies at Erasmus University, Rotterdam (the Netherlands).
Cobussen is author of several books, among them The Field of Musical Improvisation (LUP 2017), Music and Ethics (Ashgate 2012/Routledge 2017, co-author Nanette Nielsen), and Thresholds. Rethinking Spirituality Through Music (Ashgate 2008). He is editor of The Handbook of Sonic Methodologies (Bloomsbury 2020, co-editor Michael Bull), The Routledge Companion to Sounding Art (Routledge 2016, co-editors Barry Truax and Vincent Meelberg) and Resonanties. Verkenningen tussen kunsten en wetenschappen (LUP 2011). He is editor-in-chief of the open access online Journal of Sonic Studies (www.sonicstudies.org).