The Sinfonias of J.S. Bach are three voiced works and can be played on either the harpsichord, piano or organ. There are 15 in the collection all of which explore contrapuntal writing to the full. Bach’s intention was to prepare students for composition and a cantabile style of playing. The autograph copy of the Sinfonia’s is dated 1723. The organ realisation plays back at a tempo of 80 quarter note beats to the minute. The Two Part Inventions and Sinfonias are essential repertoire for all keyboard players and not a bad introduction to playing Bach on the organ. They are ideal “warm up” pieces.