<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Hi all,</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>I found this set of C forks next to the piano in a customer's house today. Rather a curiosity. C3, C4, C5, C6 and C7. The big one in the middle is C7, the thin one on the bottom is C3. They are not quite standard pitch (either 435 or 440), but rather that "powers of 2" series of frequencies: 128, 256, 512, 1024, and 2048 (numbers stamped on each fork). The owner knew nothing about them. I suspect they might have been intended for other than tuning (hearing tests?), but really have no idea. Maybe someone on the list knows something. Anyhow, something curious.<br></div><div><br></div><div><img height="240" width="324" apple-width="yes" apple-height="yes" src="cid:246EB6B6-EA59-4365-AA4D-862D89421018"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: 12.0px Helvetica">100_0998.JPG</font></div><p style="margin: 0.0px 0.0px 0.0px 0.0px; min-height: 14.0px"><font face="Helvetica" size="3" style="font: 12.0px Helvetica"><span class="Apple-converted-space"> </span></font><br class="webkit-block-placeholder"></p><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; min-height: 14px; "><br></div> </div><br><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Regards,</div><div>Fred Sturm</div><div>University of New Mexico</div><div><a href="mailto:fssturm@unm.edu">fssturm@unm.edu</a></div><div><br class="webkit-block-placeholder"></div></div></span><br class="Apple-interchange-newline"> </div><br></body></html>