Fingering for B flat on the cello?

Answer 1

Cb is the same as B natural. So use your index finger on your left hand, and add the octave key as needed. For the lowest Cb, use all three main fingers on your left hand, plus the pinky key that is in the center and to the right. Then use your three main fingers on your right hand plus the bottom pinky key.

Answer 2

G-flat (a.k.a F-sharp) can be played by holding down your index, middle, and ring finger in your left hand and your index finger on your right hand while also pressing the side key with your right palm.

Answer 3

I think it is one finger on the A string, halfway between plain old B and the top of the fingerboard.

Answer 4

Same as for C sharp