Lewis & Short

cĭthărista, ae, m., = κιθαριστής, a player on the cithara (mostly in Cic.), Cic. Phil. 5, 6, 15; id. Div. 2, 64, 133.
Esp., a statue of a player on the cithara: etiam illum Aspendium citharistam, de quo saepe audistis id quod est Graecis hominibus in proverbio, quem omnia intus canere dicebant, sustulit, i. e. he was so skilfully represented that he seemed to be playing the music inwardly, though it was unheard, Cic. Verr. 2, 1, 20, § 53 Zumpt ad loc.