This work was composed for the 250th anniversary of J. S. Bach's death. It was premiered in Erfurt cathedral by the Raschèr Saxophone Quartet and Silvius von Kessel, the cathedral organist. The work contains numerous allusions to Bach. The famous bass ostinato from his Mass in B minor serves as the principal inspiration, while the motif B-A-C-H and the formal structure of his 'Toccata, Adagio und Fuge' provide further links to the master.