What aspect of musicianship does movable Do primarily address?

Movable Do primarily addresses pitch recognition by allowing musicians to identify and sing notes based on their relationship to a tonal center, rather than their absolute pitch. This system assigns syllables (Do, Re, Mi, etc.) to the degrees of the scale in a way that can shift depending on the key—hence "movable." As a result, musicians using this approach can effectively recognize and articulate pitches in various contexts, enhancing their ability to identify notes relative to one another.

In contrast, other aspects like rhythm interpretation, melody construction, and chords building, while important elements of musicianship, are more focused on the organization of musical time, the assembly of musical lines, and the formulation of harmonic structures, respectively. Movable Do is specifically geared towards fostering an understanding of pitch relationships, making it a powerful tool for developing ear training and overall musicianship in terms of pitch.