Opening bars of the BWV 867 fugue
<p>Johann Sebastian Bach (composer)
</p>
Carl Czerny (editor of score)
<a rel="nofollow" class="external text" href="https://ks4.imslp.info/files/imglnks/usimg/9/95/IMSLP01026-Prefug22.pdf">1893 G. Schirmer score</a> of Prelude and Fugue No. 22 in B-flat minor, BWV 867 from <i>The Well-Tempered Clavier</i> Book I