Premise: Silvana, J. 87, is an opera by Carl Maria von Weber, first performed in Frankfurt am Main on 16 September 1810. The libretto, by , is a reworking of an earlier, unsuccessful opera by Weber, "Das Waldmädchen ". Weber also reused music from the same piece in "Silvana".
Hypothesis:  Carl Maria von Weber catapulted to the top of the opera game after his groundbreaking work, "Silvana, J. 87".