bminor Key of a Bach mass Key of Tchaikovsky's "Pathétique" Key of Schubert's "Unfinished" Symphony Key of a noteworthy Bach mass It has two sharps D major's relative key "In the Hall of the Mountain King" key Key of Bach's best-known Mass Bach's "Mass in ___" Key of Bach's most famous Mass Key with two sharps Key related to D major Key of Bach's Mass