thumb|Heldentenor Ludwig Schnorr von Carolsfeld and his wife, Malvina, in the title roles of [[Tristan und Isolde, 1865.]]
thumb|Heldentenor Ludwig Schnorr von Carolsfeld and his wife, Malvina, in the title roles of [[Tristan und Isolde, 1865.]]
A heldentenor (; English: heroic tenor), earlier called tenorbariton, is an operatic tenor voice, most often associated with Wagnerian repertoire.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).