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Old 06-14-2015, 08:39 PM   #1
Gassy
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Join Date: Feb 2015
Location: Australia
Posts: 162
Default Drone reeds "double toning"?

I have some new Murray Henderson carbon fibre drone reeds. I am trying to set them up in what I believe to be old Lawries. They seem to have a tendency to resonate at twice the expect frequency ~466 for tenors and ~233 for bass. Is this called double toning?

FWIW I often cannot hear the expected 116Hz on the bass. I checked the setup by mouth blowing down the moisture control tubes (bypassing the MCS except for last bit of hose and valve). If I tap the end of the drones often they reset to the correct pitch. How hard should I need to blow? About PC level, or more?

Am I right that I should probably move the bridle towards the vibrating end of the reed?
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