In this quote, Ken Hill is expressing his belief that music is not just about the melody or the notes being played, however likewise about the textures that are created. He is highlighting the importance of the total sound and feel of the music, rather than just the specific parts. This could refer to the different layers of sound, using different instruments, or even the feelings that are stimulated by the music. Hill is suggesting that in order to genuinely appreciate and comprehend music, one must pay attention to the textures that are being produced, in addition to the melody.
"One has children in the expectation of dying before them. In fact, you want to make damn sure you die before them, just as you plant a tree or build a house knowing, hoping that it will outlive you. That's how the human species has done as well as it has"