Re:Why are D-sharp and E-flat considered to be two different...
by tengwar2 on Tuesday August 30, 2022 @04:31PM
(#32654668)
Those removable slides are usually just to get the spit out of the loops. I haven't seen the lever you mention - are you sure you are not just looking at the usual [water key](https://www.youtube.com/watch?v=vMbb8-WK_VM)?
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