Chopin Op. 10, No. 1: excerpt of harmonic reduction (bars 41 - 49) after Carl Czerny
<a href="//commons.wikimedia.org/w/index.php?title=User:Rolf-Peter_Wille&amp;action=edit&amp;redlink=1" class="new" title="User:Rolf-Peter Wille (page does not exist)">Rolf-Peter Wille</a>
2011-01-23
<span class="int-own-work" lang="en">Own work</span>