Topic: Unstable C# in the staff
I have been struggling to make reeds for my "new" bassoon. (It's an older Heckel.) The C# in the staff has been a very troublesome note. It is very unstable; it will sag even when E is fine. I'm familiar with fixing sagging E's, but I've never had to deal with C#'s.
I'd like to try making reed adjustments before trying different bocals.