Der Schauspieldirektor
In 1845 he was appointed head of the Royal opera in Berlin. The same year he adapted Mozart's singspiel "Der Schauspieldirektor", replacing Gottlieb Stephanie's libretto with his own which included the characters of Mozart, Emmanuel Schikaneder, Mozart's sister-in-law Aloysia Lange among others. Schneider's version was first performed in Berlin on 25 April 1845. Ludwig's bold patriotic couplets and impromptus during the revolutionary year 1848 necessitated his retirement, and thereafter he translated and adapted for the stage Mozart's "Cosi fan tutti"; published, under the pseudonym “L. W. Both,” "Das Buhnenrepertoire des Auslandes"; and founded, as a result of his experiences as a soldier in the Danish war of 1849, the periodical "Der Soldatenfreund".