> as lemmas

1872 Musical Times & Singing Class Circular 15 639/1 A part-song for male voices,..in which the boy altos sang with the first tenors with excellent effect.

1967 Times 28 June 10/6 He became well known as a boy alto.

1996 R. Miller On Art of Singing iii. v. 176 He brings musicality to his ‘new’ instrument and applies some of the same basic techniques he used as a boy soprano or boy alto.