Mus. [SUPER- 6 d.] a. An organ-stop sounding two octaves higher than the ordinary pitch, i.e., an octave above that called ‘octave’ (OCTAVE 3 e); FIFTEENTH B. 2 b. b. ‘A coupler pulling down keys one octave above those struck’ (Stainer and Barrett, Dict. Mus. Terms, 1876).
[1688. in Hopkins, Organ (1870), 453. [The fine organ in the Temple Church was built by Father Smith, in 1688…. The following is a copy of Father Smith’s original disposition of the Stops] … Great Organ…. 4. Quinta, of mettle…. 5. Super Octavo.]
1884. Encycl. Brit., XVII. 831/2. The 2 [= 2-foot] fifteenth, or superoctave, of the great organ.
