Tonic_Sol-fa

Tonic Sol-fa School Modulator

Tonic Sol-fa School Modulator and Complete Modulator, Singing for Schools and Congregations, ed. John Curwen, second ed. (London: Ward, 1848) ii. The Proximate Measurement of the Common Mode shows slightly varied distances between whole steps to approximate just intonation and also indicates different tunings (under te and ray).