A manuscript score of
Erismena, with English underlay, is the oldest surviving opera score in England, dating from the 1670s. The score was in a private library until 2008. A public subscription raised £85,000 to purchase the score for the Bodleian Library, Oxford, after its exporthad been blocked by the British
Reviewing Committee on the Export of Works of Art. The manuscript has a unique allegorical prologue, with characters who do not feature in the opera; this is believed to indicate that the version was performed, or intended to be performed, for a Royal audience. A version of the English score was given by Alan Curtis who recorded it in 1968 (see below). Another one, this time by Lionel Salter, was staged by the Edinburgh University Opera Club in 1989. In the 21st century, a version of the opera was performed by
English Touring Opera,{{Cite news |last=Hall |first=George |title=Erismena
New Chamber Opera staged the work using a new edition of the original English score which ultimately appeared in the
Bärenreiter Edition of Cavalli's Collected Works; a season of performances was given by the Company in Oxford, and others in the opera season at
West Green House. ==Recordings==