<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><STRONG><FONT face=Arial>Of course, in the absence of a pitch = fork (of the non agricultural variety) one could always use the dialling tone from a telephone. But then I wouldn't know how to hold a dialling tone between = my teeth!</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial></FONT></STRONG> </DIV> <DIV><STRONG><FONT face=Arial>I should imagine though that holding a = pitch fork between your teeth is going to "lower the tone" as the hot air expands = the metal.</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial></FONT></STRONG> </DIV> <DIV><STRONG><FONT face=Arial>AF</FONT></STRONG></DIV></BODY></HTML>