Very seldom the Salzburg Festival hosts romantic unsung operas.
That will happen next summer with a revival (in stage performances) of "Il Templario" (1840, premiered in Torino) ) by Otto Nicolai (libretto in Italian based on Walter Scott's Ivanhoe).
There is a CPO recording, but I suppose the Salzburg performances starring Joyce Di Donato and Juan Diego Florez will attract more attention on the opera.
BTW I know only the attractive overture through a Lp Decca cond. by K.H.Adler dedicated to orchestral pieces from unsung romnatic operas by composers like Goldmark, Goetz, the later Schreker, the "strange couple" Weber-Mahler ("Die Drei Pintos" adapted from the latter).
Yes, Alberto, that DECCA LP with those unsung pieces was quite a sensation at the time - and it had excellent sonics! :)