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From: WVE~ol.com
Date: Mon, 16 Aug 1999 14:56:50 EDT
Subject: Bending test at SPAH99

Hi Benders,

Using tiny plastic tubes, I have connected a U-tube manometer to a C Big
River diatonic harp. I can measure the difference in pressure between the
player's mouth and reed chamber 2 or 3.

If the pressure differences are about the same for bent and unbent draw notes
in the same hole, then that will be convincing evidence that bends do not
require hole constriction by the player's lips......and I'll have to eat
crow! However, if the pressure difference is significantly greater, then
that is evidence that the player is constricting the hole.

I will bring this instrumented harp to SPAH, along with plenty of
individually-packaged, anti-bacterial wet wipes to sanitize it between tests.
I will be trying to collar the best benders to participate in the test. If
I don't approach you, look me up to see my gadget and try your skill at
making unconstricted bends.

See you there for great music and fun,

Vern