Bones and Piano keys

Bones noun - A percussion instrument consisting of a pair of hollow pieces of wood or bone (usually held between the thumb and fingers) that are made to click together (as by Spanish dancers) in rhythm with the dance.

Piano keys and bones are semantically related in white things topic. In some cases you can use "Piano keys" instead a noun "Bones".

Bones and piano keys are semantically related in white things topic. You can use "Bones" instead a noun phrase "Piano keys".