The Aeolean Vocalion Graduola also encouraged the listener to interact via their Graduola "remote control" which was a solid wire inside a spiral wire with a black coating. The cable controlled the motion of a roughly teardrop shaped, fluted rubber stopper that moved up or down in the throat of the horn where it connected to the base of the reproducer. Ron L -----Original Message----- From: phono-l-bounces at oldcrank.org [mailto:phono-l-bounces at oldcrank.org] On Behalf Of Andrew Baron Sent: Thursday, August 23, 2007 10:59 PM To: Antique Phonograph List Subject: Re: [Phono-L] Silvertone Catalog <snip> being "manipulated while playing, thus enabling you to give your own interpretation to the music", is certainly reminiscent of the way player piano operators of the same era were encouraged to interact with the controls while the piano was playing to make the music their own. <snip>