Schematic of the typical structure of the Cepheids we study in this work with MUSIC. Convective regions are colored, including: a tiny convective core, an inner convective shell surrounded by radiative zones, and a thin outer convective envelope. The simulation domain is a spherical shell, and is outlined with black; it encapsulates the interior convection zone along with the surrounding radiative zones, and is truncated just below the outer convective envelope.