Topics were the composer Dieter Schnebel (1990, 2000), Musicology in United Berlin (1991), Music and Visualization (1992), Walter Benjamin (1993), John Cage (1993), Friedrich Nietzsche (1994), Paul Hindemith (1995), Joseph Joachim (1995, 1997, 2007), surrealism and DADA (1998), Bohuslav Martinů (1999), Hermann Kretzschmar (1999), Beethoven (1996, 1999, 2001), Ernst Pepping (2001, 2006), Max Reger (2003, 2006), Richard Strauss (1999), Franz Schreker and his pupils (2003) and George Enescu (2005).