The oratorio is about the biblical heroine Jahel, whose murder of the army leader Sisara leads to the liberation of Israel. The music is pointed with all its might towards the Viennese classical period, and the experienced Galuppi opera composer can be felt in every note. He wrote the arias for the various soloists of the Ospedale, thusdemonstrating the high level of singing that prevailed there.

The Musica Fiorita ensemble around harpsichordist Daniela Dolci, together with the Mädchenkantorei Basel and young soloists from the Basel scene, present withGaluppi's "Jahel" an elaborate repertoire excavation of the first order in exemplary interpretation.