Previous ImageNext Image TelharmoniumtestP108 The keyboard control of the Telharmonium at Telharmonic Hall 1907 Like this:Like Loading... The keyboard control of the Telharmonium at Telharmonic Hall 1907 Share this:Click to share on Facebook (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Twitter (Opens in new window)Like this:Like Loading...