Emily Dickinson Lexicon

DIS-DI-A-PA'SON, or BIS-DI-A-PA'SON, n. [See Diapason.]

In music, a compound concord in the quadruple ratio of 4:1 or 8:2. Disdiapason diapente, a concord in a sextuple ratio of 1:6. Disdiapason semi-diapente, a compound concord in the proportion of 16:3. Disdiapason ditone, a compound consonance in the proportion of 10:2. Disdiapason semi-ditone, a compound concord in the proportion of 24:5. – Encyc.