DISDIAPASON, BISDIAPASON, noun [See Diapason.] In music, a compound concord in the quadruple ratio of 4:1 or 8:2. DISDIAPASON diapente, a cocord in a sectuple ratio of 1:6. DISDIAPASON semi-diapente, a compound concord in the proportion of 16:3. DISDIAPASON ditone, a compound consontance in the proportion of 10:2. DISDIAPASON semi-ditone, a compound concord in the proportion of 24:5.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI