Dutch organist, harpsichordist, conductor and pedagogue, (born May 30, 1928 in Graveland, Netherlands - died January 16, 2012 at the age of 83).
Renowned mostly for his Bach interpretations as harpsichordist or with his ensembles, the Leonhardt Baroque Ensemble and the Leonhardt-Consort.
In 1967 he was the main actor in the movie Diary of Anna Magdalena Bach, playing and performing and personifying Johann Sebastian Bach himself.
In 1971 Gustav Leonhardt and Nikolaus Harnoncourt jointly undertook a project, completed in 1990, to record all Bach’s sacred cantatas.