Jean-Blaise Martin
Jean-Blaise Martin, full name Nicolas Jean-Blaise Martin (February 24, 1768 in Paris – October 28, 1837 in Tourzel-Ronzières) was a French opera singer whose tessitura lay between tenor and baritone, which became later known as "baryton-martin". Life and career Jean-Blaise Martin began singing publicly as a child, before his voice broke. He made his professional operatic debut in 1789, at the Théâtre Feydeau, in Paris, in a parody called . He then studied with Madame Dugazon, and made his debut at the Opéra-Comique in 1794, and sang there until 1823. He became a member of the theatre's administrative committee in 1801. He also taught at the Conservatoire de Musique of Paris, from 1825 to 1837. He composed one opéra comique, , produced at the Théâtre Feydeau in 1796. During his career, he created some 15 roles in operas by Nicolas Dalayrac, François Devienne, André Grétry, Étienne Méhul, Nicolas Isouard, Ferdinando Paer, etc. Martin's voice was described as a "", meaning a deep-voiced dark tenor, or as a "", meaning a clear-voiced high baritone; the compass was E flat to a, with a falsetto extension to a'. His vocal type became known as , most often found in French operetta. Modern