Calvesi, Teresa (fl. 1776–1801). Italian soprano. Her first known appearance was in Genoa in 1776. At Easter 1785 she and her husband Vincenzo were engaged for the court theatre in Vienna. Although Zinzendorf judged her as ‘not bad’ at her debut on 18 April 1785, her career in Vienna did not blossom. In 1788 she accompanied her husband to Naples on a year's leave of absence, but she did not sing there. She did not return with him to Vienna but pursued her own, apparently successful, career in Palermo, Vicenza, London and elsewhere in Italy until at least 1801.

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Calzabigi, Ranieri (de’) (b. Livorno, 23 Dec. 1714, d. Naples,? 12 or 13 July 1795), Italian librettist. The Mozart family were in Vienna for performances of his and Gluck's ‘reform’ operas Orfeo ed Euridice (1762) and Alceste (father and son only, 1767–8), but seem not to have encountered Calzabigi directly. The libretto of Mozart's La finta giardiniera, written for Munich, was long thought to be by Calzabigi, with revisions by Marco Coltellini, but this attribution is mistaken, based on confusion with concurrent performances in Munich of Antonio Tozzi's resetting of Orfeo (as revised by Coltellini). Neither the Munich libretto of La finta giardiniera, nor the original one for Rome (1774, set by Pasquale Anfossi) is signed, but Giuseppe Petrosellini has been suggested as the actual librettist based on mention (by the ‘Interessati’) in the Rome libretto of another opera by that author.