||Combattimento di Tancredi e Clorinda, SV 153
There doesn't seem to be any general agreement on how to classify this piece. A setting of Tasso's stanzas, Grove Music classifies it as a "opusculo in genere rappresentativo" (generally representative work), and RISM only deals with the excerpts separately, so they do not have a classification for the whole work. The Wikipedia article classifies as an operatic "scena", though not a full opera. To make things more confusing, it was originally published in a book of madrigals. According to Grove Music, it was first performed at "a private performance for Girolamo Mocenigo in Venice in 1624 or 1625". Therefore, the generic "secular cantatas" has been used.