Vásárhelyi Győző, known as Victor Vasarely was an artist who is often regarded as the father of Op Art. He began to study medicine in Hungary, but left the race after two years. Wikipedia--Slide sequence alt to willowisp -conc.
Lines Draw lines like this to the sound of a continuous mix of music. Get people to draw lines about how the music makes them feel, variety of music styles and kinds of people (artists, medics, lawyers)