<a href="https://en.wikipedia.org/wiki/middle_C" class="extiw" title="en:middle C">C</a> <a href="https://en.wikipedia.org/wiki/altered_scale" class="extiw" title="en:altered scale">altered scale</a>.
Created by <a href="https://en.wikipedia.org/wiki/User:Hyacinth" class="extiw" title="en:User:Hyacinth">Hyacinth</a> 00:19, 5 July 2010 using Sibelius and Paint.
5 July 2010 (original upload date)
<span class="int-own-work" lang="en">Own work</span>