Text: Harmonic Stopped Twelfth English Harmonic Twelfth English Stopped Harmonic Twelfth English A Harmonic Gedeckt of 2 2/3' speaking length, the longest pipe being 4' actual length. It was first introduced by Thomas Casson at Omagh, County Tyrone, Ireland, and placed at his direction in other organs by the Positive Organ Company of London, including the London Organ School, and Cathcart House, Kensington, S.W. Its tone is full and clear, and blends well, having relatively few upper partials. It is less assertive than the normal Twelfth. See Stopped Twelfth. Examples No examples of Stopped Harmonic Twelfth are known. Contributions welcome. Harmonic Twelfth 2 2/3', Gallery Organ II; Convention Hall, Atlantic City, New Jersey, USA; Midmer-Losh. Harmonic Stopped Twelfth 2 2/3', Solo; St. Matthew's Lutheran Church, Hanover, Pennsylvania, USA; Austin 1925. Bibliography Audsley[1]: Harmonic Twelfth. Irwin[1]: Harmonic Stopped Twelfth. Wedgwood[1]: Harmonic Stopped Twelfth; Harmonic Tierce; Stopped Harmonic Twelfth.

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