Bible Encyclopedias
Alto

1911 Encyclopedia Britannica

(Ital. for "high"), a musical term applied to the highest adult male voice or counter-tenor, and to the lower boy's or woman's (contralto) voice.

Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Alto'. 1911 Encyclopedia Britanica. https://www.studylight.org/​encyclopedias/​eng/​bri/​a/alto.html. 1910.