THIS MONTH's QUOTATION
The physical existence of the [musical] material might be described as the top of an "iceberg of knowledge" which can be perceived with the senses, and which again and again appears in various concrete forms
Silvana K. Figuera-Dreher: Improvisieren. Material, Interaktion, Haltung und Musik aus soziologischer Perspektive. Wiesbaden (Springer Fachmedien) 2016 (p.171).