In addition to his artistic activities Henry Arnold recently graduated in economics (bachelor of science) at Berlin's Humboldt University, you'll find his bachelor thesis here (in German):

http://lehre.wiwi.hu-berlin.de/Professuren/vwl/fw/Dissertationen%2C_Theses_und_Seminararbeiten/dipl

During the 2011 campaign for the Berlin Parliament he had been fighting for the Green Party, being part of Turgut Altug's team who won his home district in Kreuzberg.

On top he participated for the third time in a row in the Berlin marathon, finishing as 9456th and thus still in the range of the upper ten thousand…

Recording of the 1st movement of Beethoven's
sonata op. 31/2