This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
ToneKbdConcepts. en Two digital drawings of how an imaginary keyboard would look like with tone equal temperament The top drawing divides the intervals in between the black sharp keys and the next white key up with smaller grey keys that play the flats of the next white key Also there are grey keys between and and between and The