Audio Commons: an Ecosystem for Creative Reuse of Audio Content
Timbral terms
The plot below shows a hierarchical ontology of timbral terms resulting from work undertaken by the IoSR for the EU-funded AudioCommons project, as part of the work described here. It shows the resulting structure of terms, with equal weight given to each lowest-level term. Hovering the mouse over each block shows the timbral attribute which encompasses all children below it. Clicking a category zooms to that level to show more detail, and clicking the centre of the diagram moves up a level.
This plot is based on this example, and the tooltip addition used here. The plot is based on D3.js.