This Saturday and Sunday, July 15 and 16, Kreische Brewery and Monument Hill State Historic Sites will host presentations exploring the music of “Die Fröesche” or “The Frogs,” a 19th-century German-Texan singing group from La Grange. The programs will explore how these music societies, much like the Bluff Schuetzenverein, shaped the history and culture of the local community and will include music samples from the group’s songbooks.