From an interview with German composer Volker David Kirchner, reprinted at the Sign and Sight website:
In the late 1960s, I was still labelled an avant-gardist – a genuinely unpleasant, military term, which refers to the vanguard, so that I always ask myself: When is the real thing supposed to come along?
[Interviewer:] The pianist Susanne Duch has said that the most intense moments for her are the pauses between the tones. What does the composer have to say about this, having, ultimately, composed the tones themselves?
[Kirchner:] It’s true, the silences between the tones are quite decisive. And if I hadn’t composed those tones, there would be no silence, but instead only pauses. That’s the difference.