The Bach Museum Leipzig is a museum that deals with the life and work of the composer Johann Sebastian Bach. It is part of the Bach Archive Leipzig in the Bosehaus at the Thomaskirchhof. The museum has had 850,000 visitors since it opened in 1985. From 1987 to 2002, the musicologist Cornelia Krumbiegel headed the museum, which she had been involved in since 1983. From October 1999 to March 2000, the museum was closed for 6 months and equipped with modern technology. The exhibition area has been expanded to 230 m². Since the reopening after renovation work in 2010, the museum has a thematically structured exhibition area of 450 m².