Movable do
DEFINITION
Do is the first scale degree in solmization ( do, re, mi). A movable do means the pitch is always the same as the first scale degree of the tonal center of the composition. This is in contrast to a fixed do, meaning do always represents the pitch " C." system in which "do" is the keynote, and may be transposed to any key, as opposed to fixed do, wherein all syllables associate with absolute pitches