"Sei mir gegrüßt" from the operetta "Die sieben Schwaben" ("The Seven Swabians") "Sei mir gegrüßt" from the operetta "Die sieben Schwaben" ("The Seven Swabians") Main opus "Die sieben Schwaben" ("The Seven Swabians"), operetta in 3 acts, libretto by Hugo Wittmann and Julius Bauer