His 1739 volume of chorale arrangements, the third part of "Clavier-Ubung", is aka "German Organ Mass"
Clavier-bung III from 1739, and the Great Eighteen chorales, revised [DOC] [TLE] March | 2011 | THE ABSURD TIMES -- STILL [PAR] Even Obama may have believed what he said in his presidential address on 
March 28 ...... Chapter VIII governs regional arrangements, such as NATO, the 
Arab ..... six trio sonatas, the German Organ Mass in Clavier-bung III from 
1739, ... the high points may be the third part of the Clavier-bung, a setting of 21 
chorale... [DOC] [TLE] Johann Sebastian Bach by Odane P. Hamilton - issuu [PAR] Jul 11, 2011 ... "German Organ Mass" in Clavier-bung III from 1739, and the ... [43] [44] One of 
the high points may be the third part of the Clavier-bung, a setting of 21 chorale 
preludes ...