Answer: porgyandbass

AnswerCrossword Clue
PORGYANDBASSMusical?
PORGYANDBASSFishy Gershwin opera?
PORGYANDBASSFilm about an interspecies fish relationship?
PORGYANDBASSPunster's folk opera.
PORGYANDBASSFolk-opera names, fishy style
PORGYANDBASSSource of "Summertime"