Almost every modern piano has 35 black keys and 53 white keys for a total of 88 keys. The twelve notes of the Western musical scale are laid out with the lowest note on the left; the larger keys (for the seven "natural" notes of the C major scale: C, D, E, F, G, A, B) jut forward. Because these keys are often coloured white on a keyboard, these are often called the white notes or white keys. The keys for the remaining five notes which are not part of the C major scale are set back. Because these keys are often coloured black, these notes are often called the black notes or black keys. The pattern repeats at the interval of an octave.