Quick answer — Maebashi Witches performed 2 anime themes, including "Sorezore no Door" from Maebashi Witches, "Sugosugi Maebashi Witches!" from Maebashi Witches.
Maebashi Witches performed the anime theme songs "Sorezore no Door" (Maebashi Witches), "Sugosugi Maebashi Witches!" (Maebashi Witches).
Maebashi Witches's first listed anime theme is "Sorezore no Door", the ending of Maebashi Witches.