For about five years of his life, the composer Johann Sebastian Bach was intensely creative in one particular form of music - choral pieces of music for church services, known as cantatas. Now the English conductor, Sir John Eliot Gardiner, has decided to perform all 200 surviving pieces in religious sites around the world in just one year CLASSICAL MUSIC & OPERA NOTE: this is a digitised version of original story: for original tape details please see T17010027