The White Keys

Which white key sits directly to the LEFT of a group of two black keys?

The white key just left of any pair of black keys is always C.

Which white key is trapped in the MIDDLE of the two black keys?

D is the white key nestled between the group of two black keys.

Which white key sits just to the LEFT of a group of three black keys?

F is directly to the left of the group of three black keys.