Newcastle in General discussion Posted November 14, 2017 · Report reply On 07/11/2017 at 21:49, David Drinkell said: When other essentials are fulfilled (which they seem to be in the context of this sort of organ), I could believe that an octave tierce would be quite a useful thing to have. There's one at Durham Cathedral, although that's big enough to have everything else and to spare.... The 4/5 at Durham is actually VERY cunning and provides an alternative Cornet on the positive to that provided by the Flute a Cheminee 8, Flute Ouverte 4, Doublette 2 and Sesquialtera. Selecting the Prestant 4, Doublette 2, Larigot 1 1/3, Octivin 1 and Octave Tierce 4/5 and then drawing Positive on Solo transfers the division onto the Solo where the Solo Sub Octave and Unison Off take it down to 8 foot pitch. Drawing Solo to Choir puts it back down on the choir too...... Ingenious if you ask me.