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Re: True purpose of the split D key

Author: Chris P
Date: 2018-05-23 14:03

If the entire RH3 fingerplate was to be closed by the LH Eb key, then the forked F vent will open.

The outer ring is fitted to close the F# key and open the forked F vent when RH3 is held down and the inner bush is independent to that so it can be closed on its own (by the LH Eb key) to bring the E down to pitch while the Eb key is open.

Also the inner bush can be configured to close along with the low C key which is what's called the Philadelphia/Philly D to alter the venting of altissimo D.

As for an Eb-Ab slur, if you're holding both LH Eb and G# keys down together, that's not going to have much impact on the G#/Ab as the Eb tonehole is at least four toneholes away from the G# tonehole.

Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.

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