First two measures of Mozart's Piano Sonata in C major, K 545, first movement.
<a href="//commons.wikimedia.org/w/index.php?title=User:Craigsapp&amp;action=edit&amp;redlink=1" class="new" title="User:Craigsapp (page does not exist)">Craig Stuart Sapp</a>
<span class="int-own-work" lang="en">Own work</span>