🎹Each octave contains seven white keys and five black keys, with an additional C at the right end of the strip. The black keys appear in groups of two and three. Locate C immediately before a group of two, then follow the white-key sequence. Increasing the octave count repeats the pattern while keeping the drawing within the printable width.
Letter mode uses international C, D, E, F, G, A and B, with sharp names on black keys. Fixed-do mode uses Do, Re, Mi, Fa, Sol, La and Si for those same pitch classes. This is fixed pitch naming, not movable-do solfège. Blank mode removes the printed note names so learners can fill them in themselves.