https://archive.org/details/soundart2december2013 https://archive.org/details/soundart4november2013 https://archive.org/details/soundart24october2013 https://archive.org/details/soundart23september2013 https://archive.org/details/soundart3september2013 https://archive.org/details/soundart8august2013 https://archive.org/details/soundart18july2013 https://archive.org/details/soundart17june2013 https://archive.org/details/soundart11june2013 https://archive.org/details/soundart17may2013 https://archive.org/details/soundart6may2013 https://archive.org/details/soundart19april2013 https://archive.org/details/soundart1april2013 https://archive.org/details/soundart20march2013 http://archive.org/details/soundart5february2013 http://archive.org/details/soundart13january2013

drawings graphite 0.5 B on A4 paper.
osvaldo cibils 2013