The repetition of a certain sound leads to its implementation in cognitive and emotional memory and maybe having an impact on the developing character of the adult mind later on.
-Current research-
Also the gestuality of the form and its evolution, organic, with watercolors for example, it’s transparency is more close to the different layers a sound can have, is more interesting than the mathematical form, precise, with a ballpoint pen - that is ’digital’, this is ’analog’