<dl><dt>Two waveform slides painted by <a href="https://en.wikipedia.org/wiki/Daphne_Oram" class="extiw" title="en:Daphne Oram">Daphne Oram</a>, 1965–80</dt></dl><pre>Oram was interested in working intuitively on her music; she wanted to paint a 
shape and hear what it sounded like, then try another. Rounder shapes produce 
shofter sounds. Spikier shapes produce harsher sounds richer in harmonics.

Source: Department of Music, Goldsmiths, University of London
Inv. No: 2010–68 pts 3–4
</pre>
 
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