Intensive Thinking has a very nice post on Sonic Electricity … which begins with this quote from Deleuze and Guattari (A Thousand Plateaus):
[A technological] plane is not made up simply of formed substances (aluminium, plastic, electric wire, etc.) or organizing forms (program, prototypes, etc.), but of a composite of unformed matters exhibiting only degrees of intensity (resistance, conductivity, heating, stretching, speed or delay, induction, transduction …) and diagrammatic functions exhibiting only differential equations or, more generally, “tensors”.
A series of great videos follow (Alva Noto, Ryoji Ikeda etc), so it’s worth following the link above. Here’s one of those videos here, from Ryoji Ikeda’s work (I really love this work, though I’ve never seen it in a gallery).