Autograph manuscript of the title page of Bach's Cantata No. 56, <i>"Ich will den Kreuzstab gerne tragen"</i>, BWV 56; the word "Kreuz" is replaced by the Greek letter chi, χ, the <i>rebus</i> of the cross, used by Bach to symbolize the paradox of the cross. The image file was dezoomified and then cropped using GIMP software.
<bdi><a href="https://en.wikipedia.org/wiki/en:Johann_Sebastian_Bach" class="extiw" title="w:en:Johann Sebastian Bach"><span title="German composer (1685–1750)">Johann Sebastian Bach</span></a>
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<a rel="nofollow" class="external text" href="https://www.bach-digital.de/receive/BachDigitalSource_source_00000985">Digitised image</a>, Bach digital archive, Leipzig