Call Sign: Musicians On Call has added Gabrielle Chapple, formerly with the Magic Theatre in San Francisco and the Nashville Ballet, as Dir./Corporate Philanthropy, and Madison Tenney, formerly with Nashville's Community Resource Center, as Coord./Development. Additionally, MOC has promoted Kat Weeks to SVP/Marketing & Development, PJ Cowan to Sr. Dir./Programs, Sasha Arnkoff to Sr. Mgr./Program & Volunteer Recruitment, Kelli Bruno to Sr. Mgr./Volunteer Cultivation, Emiley Roye and Ella Hunt to Program Mgrs., Abby Tannler to Mgr./Program & Activations and Katie Trent to Mgr./Development.