George Frideric Handel's "Gloria In Excelsis Deo" (HWV deest) is a sacred solo cantata, a setting of the Gloria, the liturgical part of the Mass, for soprano and strings. Handel may have composed it in Germany before departing for Italy in 1706. The composition was lost and was only attributed to Handel in 2001.

Gloria (HWV deest, the Latin word meaning "missing"), is a work which was missing from the Handel thematic catalog, but was discovered at the Royal Academy of Music's library in 2001. Handel may have composed Gloria, a demanding piece for a coloratura voice, two violins and basso continuo, during his early years in Germany prior to his departure for Italy in 1706 or in Italy in 1707. He divided the liturgical text in eight movements. Later he used parts of it for his compositions Laudate pueri dominum and Utrecht Jubilate.

The manuscript is not in Handel's hand but bound in a collection of arias by Handel. The singer William Savage (1720-1789) owned the volume. Probably his pupil Robert Stevens left it to the Academy upon his death in 1837. The work was identified by Hans Joachim Marx, professor of the University of Hamburg.

A note in the Sunday Telegraph on 11 March 2001 announced "Lost work by Handel could rival Messiah / An unknown choral work by Handel that some music scholars believe will come to be regarded as significant as Messiah has been discovered in the library of the Royal Academy of Music", but that was a sensational heading, whereas the article described the work correctly. "Perhaps not too many sopranos will be able to perform this piece.", was a comment of Marx, who had found the manuscript. Curtis Price, the principal of the Academy, testified: "The music is fresh, exuberant and a little wild in places, but unmistakably Handel." It was then believed that the piece was written in Italy in 1707. Emma Kirkby, who performed the first recording, released in May 2001, said that "the piece has individuality and charm, good bravura moments, and, more important, some moments of depth, beauty, and poignancy".

Source: Wikipedia (https://en.wikipedia.org/wiki/Gloria_(Handel)).

Although originally composed for 2 Violins, Soprano and Basso Continuo, I created this Arrangement of the "Gloria In Excelsis Deo" (HWV deest Mvt. 1) for Flute & Strings (2 Violins, Viola & Cello).