yogione (November 30, 1999 at 12:00 am)

I once had a South American flute with two bores with separate holes for each that could produce the most wonderful wolf tones, if you played harmonics loudly through both tubes at once. It helped to have a suitable indoor location to produce resonances. The harmonics were the auditory equivalent of black holes. John Townley is one of our great renaissance men of this eon, who continues to enlighten and entertain us. Good to hear this lecture on Paul Kammerer's work, and thanks for sharing it.