My daughter, going through my lps, found my copy of "Tremonisha," Scott Joplin's short opera, by the Houston Opera (1976 DG recording). It is OK, but the singers, except for one of the conjurors (can't remember), tend to forget the content and give the characters full, Italian-style operatic vocalization.

It has been redone, New World Records, but I haven't heard this new recording.