DATE: Wed, 03 Nov 1993 17:49:59 CST From: Robert Johnston Subject: to tod re slide harp
there is a gur names Henry Barnson at the university of pitsberg who patented the idea of using two seperate slides to block the redd to allow overblowing and over drawing. I saw this about 2 years ago when i was last in the US, He was trying to sell it to Hohner. Incidently he made the ultrasound on the howard levy tape. He also insetred a lapriscope down his nose while playing to see what his glotus was doing. Very interesting pictures. Another interesting one he did was to film the reed with a lapriscope drilled into the back of a harp ie in the wood oposite the mouth side. Howard Levy was playing. It was amasing how far the reeds bend during bending and overblowing. Its no wonder that the break. johno
