D FLAT DORIAN SCALE FOR SAXOPHONE - AN OVERVIEW

Very low C# is ok and I'm able to play all the opposite notes about the horn in tune with out a challenge. I can carry Center C# as much as tune Together with the octave critical and G crucial and C# higher than the staff members by utilizing the octave crucial as well as the E and D keys. I'm sure I in no way had this issue if the sax was new. Cli