Cynical Love Song (Wittgenstein feat. 신해철)
Dear My Girlfriend (Wittgenstein feat. 신해철)
Desserts (Wittgenstein feat. 신해철)
Friends (Wittgenstein feat. 신해철)
Main Dish: Course 1 (Wittgenstein feat. 신해철)
Main Dish: Course 2 (Wittgenstein feat. 신해철)
Starter (Wittgenstein feat. 신해철)
Theatre Wittgenstein Part 1 (Wittgenstein feat. 신해철)
Theatre Wittgenstein Part 2 (Wittgenstein feat. 신해철)
Theatre Wittgenstein Part 3 (Wittgenstein feat. 신해철)
백수의 아침 (Wittgenstein feat. 신해철)
소년아 기타를 잡아라 (Wittgenstein feat. 신해철)
수컷의 몰락 Part 1 (Wittgenstein feat. 신해철)
수컷의 몰락 Part 2 (Wittgenstein feat. 신해철)
오버액션 맨 (Wittgenstein feat. 신해철)
Dear My Girlfriend / the Pressure (Explicit Ver.) (Hidden Track)