for those who ask about used tracks, they are by: James Ruskin, Surgeon, Christian Wunsch, Hiroaki Iizuka, Jeff Mills, Adam Beyer, Speedy J, Luka Baumann, Pacou, Portion Reform, Fumiya Tanaka, Function, Gunjack, Rob Alcock, Nick Wilson, Sebastian Kramer, DJ Shufflemaster, Damon Wild, Echoplex and others