Lewis Short
phōnascus (noun M) = φωνασκός: (singing-master; hence)
* A teacher of singing and declamation: phonascus assum vocis suscitabulum, Varr. ap. Non. 176, 30; Suet. Ner. 23: dare operam phonasco,id. Aug. 84; Quint. 11, 3, 22.
* A musical director, chorister: psalmorum hic modulator et phonascus,Sid. Ep. 4, 11.
Charlton T. Lewis, Charles Short, A Latin Dictionary