Prelude in A minor, BWV 543 by Johann Sebastian Bach, composed between 1708–1713 in Weimar, and copied by Joachim Andreas Dröbs; slightly cropped with two pages side-by-side
J. S. Bach
<a rel="nofollow" class="external text" href="https://sachsen.digital/werkansicht/dlf/215792/6/0/">Digitised image</a>, from manuscript collection of Johann Christian Kittel, Lpz MB III.8.14, now in Leipzig University Library, Sachsen-Digital