[gigya src=”http://grooveshark.com/songWidget.swf” type=”application/x-shockwave-flash” width=”250″ height=”40″ flashvars=”hostname=grooveshark.com&songID=29928321&style=metal&p=0″ allowScriptAccess=”always” wmode=”window”] It’s one of the strangest songs of the 70’s, but it’s no prog rock freakout, no barbed Frank Zappa commentary, no underground outsider art music. Rather, it’s a mellifluous tune, bathed in sweet harmonies, strings and horns a la Burt Bacharach. It’s the juxtaposition of the lyrics-…