I am transcribing a lesson book with quite a lot of graphic material (see examples below). I do not have capability to produce tactile graphics. Do you have any suggestions about how to convey this type of information without tactiles?
In these types of situations, I generally describe the placement of the white keys in relation to the black keys. For example, "C is the white key to the left of a group of 2 black keys; D is the white key in the middle of the two black keys; E is the white key to the right of a group of two black keys."
Using this kind of description seems to me to be the only way to convey the info without having a graphic. Hopefully the student will be near a piano when working with these materials and can use the piano as the tactile!