Ed. critica M. Talbot - Riduzione per canto e pianoforte di A. Frigé-RV 588 is Vivaldi?s ?other? Gloria a composition having many parallels with Vivaldi?s better-known setting of the same text (RV 589). It dates similarly from the period 1713-1717 when the composer was acting choirmaster at the Ospedale della Pietà in Venice. It even borrows from the same work a slightly earlier Gloria by the Venetian amateur composer Giovanni Maria Ruggieri for its closing fugue. However the present Gloria RV 588 departs from its more famous counterpart in ingeniously combining its opening movement with the final movement of a specially designed introductory motet Jubilate o amoeni chori (RV 639/639a) for solo contralto (or soprano) and strings although Vivaldi makes it possible through optional cuts indicated in the autograph manuscript in Turin to perform the Gloria alone. With or without its Introduzione RV 588 is a masterly work with many memorable moments not least in its heartfelt second movement set to the words ?Et in terra pax?. The Introduction and Critical Commentary for this vocal score prepared by Antonio Frigé are closely based on those of the Critical Edition by Denis Arnold and Michael Talbot published in 1990.