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The colloquium starts with a 13 minute long movie “Physics, Jazz and Poetry”, which documents a concert by the Tomasz Stańko New York Quartet, celebrating the 20th anniversary of the Nobel Prize for the late Polish poet, Wisława Szymborska. The concert was held in Barcelona in March 2016 under the patronage of ICREA and ICFO. After the film Maciej Lewenstein introduces the concept of abstraction, first quoting Wikipedia, and then discussing abstraction in mathematics and equivalence relations. He argues that in natural sciences essentially “Modelling = Abstraction”, and illustrates this in physics, in which building of models is based on abstracting from details of reality. He discusses two examples: a pendulum and the so called quantum simulators of high Tc superconductors. He then looks at the development of the contemporary art as a process of abstraction from the rules of realism in the Western visual arts, or of harmony and tonality in the Western music. In the latter case, he bases his examples on the history of jazz from the swing era to the free improvised music of the XXIst century. The talk ends with a short 20 minute live concert of the free improvised jazz by Vasco Trilla (drums, percussion) and El Pricto (reeds).