Musicians struggle to quickly convert chord progressions between major and minor keys using Nashville Number System notation

Musicians and music educators using Nashville Number System notation lack clear, standardized conventions for notating chords in minor keys, forcing them to manually figure out transpositions or rely on inconsistent personal systems. This creates friction during rehearsals, teaching sessions, and collaborative arrangements where quick key changes are needed. Existing music theory resources don't adequately address this specific notational gap, leaving practitioners confused and slowing down their workflow.