“My favorite explanation of why [Thelonious] Monk’s playing was ground-breaking came from Chico Hamilton: ‘Man, I have played with piano players who play with all the white keys. I have played with piano players who have played with all the black keys, but I have never played with no motherfucker who played in between the cracks.’”
Source: “The Baroness: The Search for Nica, the Rebellious Rothschild,” by Hannah Rothschild, Alfred A. Knopf Publisher, 2013