Johann Crüger (1598–1662) was a seventeenth-century German Lutheran composer whose influence dwells richly in Lutheran Church music even today. He studied music across Europe as a teenager and eventually settled back in Germany, where he studied theology in Wittenberg and became cantor at St. Nicholas Church (Nikolaikirche) in Berlin. He served there for forty years until his death.
During his life as a church musician, Crüger produced dozens of Lutheran chorale tunes. Among his most famous work in today’s Church is his collaboration with German-Luther hymnwriter Paul Gerhardt in the final twenty years of Crüger’s life.