F# (F Sharp) is the note that I need to play most often in my life. That's because on my first cello the F# was a "Wolf Tone" or "Wolf Note"... legend has it that every cello has one, a note that which resonates so dissonantly with the tuning of the instrument that when you go to play it it comes out sounding like a growl, or a hungry cat. Which, frankly, when I was first learning could have been any note. But lo and behold today I am doing this super intensive recording playing one note at a time for a long time and even though the F# Wolf Tone is not pronounced as this instrument as my first cello, my fingers/ear/brain have learned to BELIEVE that it will sound bad. And then it does! How's that for intentionality?