Hi all, I am a returning player, and have been working pretty hard on getting back in shape. My range and tone are returning, gradually, but I am having a weird problem, and maybe someone can help. When moving up the stave I have a clear and resonant C, C# , D, Eb, E, and then a totally absent or buzzy and squeaky F, and then back to clear and resonant F#, G, and then a pretty solid G#, and then A is my upper limit of quality. So, my question is, what is happening to the bloomin' F??? It's driving me nuts.