Franz Hauser

Franz Xaver Hauser (12 January 1794 – 14 August 1870) was a singer, voice teacher and music manuscript collector.

Contemporary critics considered Hauser cold as an actor but approved of his pure voice.

He wrote a popular singing manual, Gesanglehre für Lehrer und Lernende (Leipzig, 1866) (freely available through Google books).

Most of Hauser's autograph manuscripts by Bach (including 19 cantatas, the accompanied sonatas for violin, and the English suites for keyboard) were acquired by the Berlin Royal Library in 1904.

Parts of his collection are also in the Darmstadt Landesbibliothek and the Harvard University Loeb Music Library.